97691430 has 32 divisors (see below), whose sum is σ = 242546400. Its totient is φ = 25152512.

The previous prime is 97691423. The next prime is 97691437. The reversal of 97691430 is 3419679.

It is an interprime number because it is at equal distance from previous prime (97691423) and next prime (97691437).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97691437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55275 + ... + 57014.

It is an arithmetic number, because the mean of its divisors is an integer number (7579575).

Almost surely, 2^97691430 is an apocalyptic number.

97691430 is an abundant number, since it is smaller than the sum of its proper divisors (144854970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97691430 is a wasteful number, since it uses less digits than its factorization.

97691430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112328.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 97691430 is about 9883.8975105977. The cubic root of 97691430 is about 460.5592284952.

The spelling of 97691430 in words is "ninety-seven million, six hundred ninety-one thousand, four hundred thirty".