97031387 has 2 divisors, whose sum is σ = 97031388. Its totient is φ = 97031386.

The previous prime is 97031383. The next prime is 97031401. The reversal of 97031387 is 78313079.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97031387 - 2² = 97031383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97031387.

It is not a weakly prime, because it can be changed into another prime (97031383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48515693 + 48515694.

It is an arithmetic number, because the mean of its divisors is an integer number (48515694).

Almost surely, 2^97031387 is an apocalyptic number.

97031387 is a deficient number, since it is larger than the sum of its proper divisors (1).

97031387 is an equidigital number, since it uses as much as digits as its factorization.

97031387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 97031387 is about 9850.4511064215. The cubic root of 97031387 is about 459.5196419097.

The spelling of 97031387 in words is "ninety-seven million, thirty-one thousand, three hundred eighty-seven".