86907497 has 4 divisors (see below), whose sum is σ = 87591936. Its totient is φ = 86223060.

The previous prime is 86907481. The next prime is 86907503. The reversal of 86907497 is 79470968.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86907497 - 2⁴ = 86907481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86907437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342029 + ... + 342282.

It is an arithmetic number, because the mean of its divisors is an integer number (21897984).

Almost surely, 2^86907497 is an apocalyptic number.

It is an amenable number.

86907497 is a deficient number, since it is larger than the sum of its proper divisors (684439).

86907497 is a wasteful number, since it uses less digits than its factorization.

86907497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684438.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 86907497 is about 9322.4190530141. The cubic root of 86907497 is about 442.9476623400.

Subtracting from 86907497 its reverse (79470968), we obtain a square (7436529 = 2727²).

The spelling of 86907497 in words is "eighty-six million, nine hundred seven thousand, four hundred ninety-seven".