93989456929 has 3 divisors (see below), whose sum is σ = 93989763507. Its totient is φ = 93989150352.

The previous prime is 93989456839. The next prime is 93989456933. The reversal of 93989456929 is 92965498939.

The square root of 93989456929 is 306577.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 9336390625 + 84653066304 = 96625^2 + 290952^2 .

It is not a de Polignac number, because 93989456929 - 2³¹ = 91841973281 is a prime.

It is a super-2 number, since 2×93989456929² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93989456959) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 153289 + ... + 459865.

It is an arithmetic number, because the mean of its divisors is an integer number (31329921169).

Almost surely, 2^93989456929 is an apocalyptic number.

93989456929 is the 306577-th square number.

93989456929 is the 153289-th centered octagonal number.

It is an amenable number.

93989456929 is a deficient number, since it is larger than the sum of its proper divisors (306578).

93989456929 is an frugal number, since it uses more digits than its factorization.

93989456929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613154 (or 306577 counting only the distinct ones).

The product of its digits is 340122240, while the sum is 73.

The spelling of 93989456929 in words is "ninety-three billion, nine hundred eighty-nine million, four hundred fifty-six thousand, nine hundred twenty-nine".