97787941 has 4 divisors (see below), whose sum is σ = 99391084. Its totient is φ = 96184800.

The previous prime is 97787939. The next prime is 97787951. The reversal of 97787941 is 14978779.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14978779 = 139 ⋅107761.

It can be written as a sum of positive squares in 2 ways, for example, as 22896225 + 74891716 = 4785^2 + 8654^2 .

It is not a de Polignac number, because 97787941 - 2¹ = 97787939 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97787951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801480 + ... + 801601.

It is an arithmetic number, because the mean of its divisors is an integer number (24847771).

Almost surely, 2^97787941 is an apocalyptic number.

It is an amenable number.

97787941 is a deficient number, since it is larger than the sum of its proper divisors (1603143).

97787941 is a wasteful number, since it uses less digits than its factorization.

97787941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603142.

The product of its digits is 889056, while the sum is 52.

The square root of 97787941 is about 9888.7785393344. The cubic root of 97787941 is about 460.7108433039.

The spelling of 97787941 in words is "ninety-seven million, seven hundred eighty-seven thousand, nine hundred forty-one".