97730757 has 24 divisors (see below), whose sum is σ = 146397888. Its totient is φ = 62779200.

The previous prime is 97730753. The next prime is 97730767. The reversal of 97730757 is 75703779.

It is not a de Polignac number, because 97730757 - 2² = 97730753 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97730753) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29032 + ... + 32222.

It is an arithmetic number, because the mean of its divisors is an integer number (6099912).

Almost surely, 2^97730757 is an apocalyptic number.

It is an amenable number.

97730757 is a deficient number, since it is larger than the sum of its proper divisors (48667131).

97730757 is a wasteful number, since it uses less digits than its factorization.

97730757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3321 (or 3318 counting only the distinct ones).

The product of its (nonzero) digits is 324135, while the sum is 45.

The square root of 97730757 is about 9885.8867584046. The cubic root of 97730757 is about 460.6210216427.

The spelling of 97730757 in words is "ninety-seven million, seven hundred thirty thousand, seven hundred fifty-seven".