623351089 has 3 divisors (see below), whose sum is σ = 623376057. Its totient is φ = 623326122.

The previous prime is 623351063. The next prime is 623351101. The reversal of 623351089 is 980153326.

The square root of 623351089 is 24967.

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 is not a de Polignac number, because 623351089 - 2¹³ = 623342897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623351039) 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, 12484 + ... + 37450.

It is an arithmetic number, because the mean of its divisors is an integer number (207792019).

Almost surely, 2^623351089 is an apocalyptic number.

623351089 is the 24967-th square number.

623351089 is the 12484-th centered octagonal number.

It is an amenable number.

623351089 is a deficient number, since it is larger than the sum of its proper divisors (24968).

623351089 is an frugal number, since it uses more digits than its factorization.

623351089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49934 (or 24967 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The cubic root of 623351089 is about 854.2354182990.

The spelling of 623351089 in words is "six hundred twenty-three million, three hundred fifty-one thousand, eighty-nine".