97138797 has 8 divisors (see below), whose sum is σ = 148021056. Its totient is φ = 55507872.

The previous prime is 97138781. The next prime is 97138813. The reversal of 97138797 is 79783179.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (97138781) and next prime (97138813).

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

It is not a de Polignac number, because 97138797 - 2⁴ = 97138781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97138747) 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, 2312808 + ... + 2312849.

It is an arithmetic number, because the mean of its divisors is an integer number (18502632).

Almost surely, 2^97138797 is an apocalyptic number.

It is an amenable number.

97138797 is a deficient number, since it is larger than the sum of its proper divisors (50882259).

97138797 is a wasteful number, since it uses less digits than its factorization.

97138797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4625667.

The product of its digits is 666792, while the sum is 51.

The square root of 97138797 is about 9855.9016330319. The cubic root of 97138797 is about 459.6891362192.

The spelling of 97138797 in words is "ninety-seven million, one hundred thirty-eight thousand, seven hundred ninety-seven".