97157398 has 8 divisors (see below), whose sum is σ = 156946608. Its totient is φ = 44841864.

The previous prime is 97157383. The next prime is 97157407. The reversal of 97157398 is 89375179.

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

It is a super-2 number, since 2×97157398² = 18879119972260808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1868386 + ... + 1868437.

It is an arithmetic number, because the mean of its divisors is an integer number (19618326).

Almost surely, 2^97157398 is an apocalyptic number.

97157398 is a deficient number, since it is larger than the sum of its proper divisors (59789210).

97157398 is a wasteful number, since it uses less digits than its factorization.

97157398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3736838.

The product of its digits is 476280, while the sum is 49.

The square root of 97157398 is about 9856.8452356725. The cubic root of 97157398 is about 459.7184761334.

The spelling of 97157398 in words is "ninety-seven million, one hundred fifty-seven thousand, three hundred ninety-eight".