97015687 has 2 divisors, whose sum is σ = 97015688. Its totient is φ = 97015686.

The previous prime is 97015663. The next prime is 97015727. The reversal of 97015687 is 78651079.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97015687 - 2¹⁹ = 96491399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97015637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48507843 + 48507844.

It is an arithmetic number, because the mean of its divisors is an integer number (48507844).

Almost surely, 2^97015687 is an apocalyptic number.

97015687 is a deficient number, since it is larger than the sum of its proper divisors (1).

97015687 is an equidigital number, since it uses as much as digits as its factorization.

97015687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 97015687 is about 9849.6541563651. The cubic root of 97015687 is about 459.4948566392.

The spelling of 97015687 in words is "ninety-seven million, fifteen thousand, six hundred eighty-seven".