97215029 has 8 divisors (see below), whose sum is σ = 99722040. Its totient is φ = 94737600.

The previous prime is 97215011. The next prime is 97215037. The reversal of 97215029 is 92051279.

It can be written as a sum of positive squares in 4 ways, for example, as 3648100 + 93566929 = 1910^2 + 9673^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97215029 - 2²⁰ = 96166453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97215029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97215529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662 + ... + 13959.

It is an arithmetic number, because the mean of its divisors is an integer number (12465255).

Almost surely, 2^97215029 is an apocalyptic number.

It is an amenable number.

97215029 is a deficient number, since it is larger than the sum of its proper divisors (2507011).

97215029 is a wasteful number, since it uses less digits than its factorization.

97215029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14791.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 97215029 is about 9859.7682021435. The cubic root of 97215029 is about 459.8093554669.

The spelling of 97215029 in words is "ninety-seven million, two hundred fifteen thousand, twenty-nine".