86905407 has 8 divisors (see below), whose sum is σ = 117838080. Its totient is φ = 56954840.

The previous prime is 86905393. The next prime is 86905409. The reversal of 86905407 is 70450968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86905407 - 2¹⁶ = 86839871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86905409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245319 + ... + 245672.

It is an arithmetic number, because the mean of its divisors is an integer number (14729760).

Almost surely, 2^86905407 is an apocalyptic number.

86905407 is a deficient number, since it is larger than the sum of its proper divisors (30932673).

86905407 is a wasteful number, since it uses less digits than its factorization.

86905407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491053.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 86905407 is about 9322.3069569715. The cubic root of 86905407 is about 442.9441115607.

The spelling of 86905407 in words is "eighty-six million, nine hundred five thousand, four hundred seven".