97731941 has 4 divisors (see below), whose sum is σ = 99811392. Its totient is φ = 95652492.

The previous prime is 97731937. The next prime is 97731967. The reversal of 97731941 is 14913779.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14913779 = 367 ⋅40637.

It is a cyclic number.

It is not a de Polignac number, because 97731941 - 2² = 97731937 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 (97731901) 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, 1039655 + ... + 1039748.

It is an arithmetic number, because the mean of its divisors is an integer number (24952848).

Almost surely, 2^97731941 is an apocalyptic number.

It is an amenable number.

97731941 is a deficient number, since it is larger than the sum of its proper divisors (2079451).

97731941 is a wasteful number, since it uses less digits than its factorization.

97731941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079450.

The product of its digits is 47628, while the sum is 41.

The square root of 97731941 is about 9885.9466415716. The cubic root of 97731941 is about 460.6228817637.

The spelling of 97731941 in words is "ninety-seven million, seven hundred thirty-one thousand, nine hundred forty-one".