86907951 has 16 divisors (see below), whose sum is σ = 138657120. Its totient is φ = 53481600.

The previous prime is 86907949. The next prime is 86907959. The reversal of 86907951 is 15970968.

It is not a de Polignac number, because 86907951 - 2¹ = 86907949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86907897 and 86907906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86907959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123450 + ... + 124151.

It is an arithmetic number, because the mean of its divisors is an integer number (8666070).

Almost surely, 2^86907951 is an apocalyptic number.

86907951 is a deficient number, since it is larger than the sum of its proper divisors (51749169).

86907951 is a wasteful number, since it uses less digits than its factorization.

86907951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247623 (or 247617 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 86907951 is about 9322.4434028853. The cubic root of 86907951 is about 442.9484336501.

It can be divided in two parts, 8690 and 7951, that added together give a square (16641 = 129²).

The spelling of 86907951 in words is "eighty-six million, nine hundred seven thousand, nine hundred fifty-one".