86958261 has 24 divisors (see below), whose sum is σ = 136267040. Its totient is φ = 53117856.

The previous prime is 86958229. The next prime is 86958293. The reversal of 86958261 is 16285968.

86958261 is a `hidden beast` number, since 8 + 6 + 9 + 582 + 61 = 666.

It is an interprime number because it is at equal distance from previous prime (86958229) and next prime (86958293).

It is not a de Polignac number, because 86958261 - 2⁵ = 86958229 is a prime.

It is a super-2 number, since 2×86958261² = 15123478312288242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86958461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13590 + ... + 18936.

Almost surely, 2^86958261 is an apocalyptic number.

It is an amenable number.

86958261 is a deficient number, since it is larger than the sum of its proper divisors (49308779).

86958261 is a wasteful number, since it uses less digits than its factorization.

86958261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505 (or 5502 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 86958261 is about 9325.1413394114. The cubic root of 86958261 is about 443.0338897244.

The spelling of 86958261 in words is "eighty-six million, nine hundred fifty-eight thousand, two hundred sixty-one".