86645037 has 4 divisors (see below), whose sum is σ = 115526720. Its totient is φ = 57763356.

The previous prime is 86645033. The next prime is 86645057. The reversal of 86645037 is 73054668.

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 not a de Polignac number, because 86645037 - 2² = 86645033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86644986 and 86645004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86645033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14440837 + ... + 14440842.

It is an arithmetic number, because the mean of its divisors is an integer number (28881680).

Almost surely, 2^86645037 is an apocalyptic number.

It is an amenable number.

86645037 is a deficient number, since it is larger than the sum of its proper divisors (28881683).

86645037 is a wasteful number, since it uses less digits than its factorization.

86645037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28881682.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 86645037 is about 9308.3315905698. The cubic root of 86645037 is about 442.5013131564.

The spelling of 86645037 in words is "eighty-six million, six hundred forty-five thousand, thirty-seven".