86813807 has 4 divisors (see below), whose sum is σ = 87396600. Its totient is φ = 86231016.

The previous prime is 86813801. The next prime is 86813827. The reversal of 86813807 is 70831868.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86813807 - 2¹² = 86809711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86813801) 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, 291173 + ... + 291470.

It is an arithmetic number, because the mean of its divisors is an integer number (21849150).

Almost surely, 2^86813807 is an apocalyptic number.

86813807 is a deficient number, since it is larger than the sum of its proper divisors (582793).

86813807 is a wasteful number, since it uses less digits than its factorization.

86813807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582792.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 86813807 is about 9317.3927147030. The cubic root of 86813807 is about 442.7884329306.

The spelling of 86813807 in words is "eighty-six million, eight hundred thirteen thousand, eight hundred seven".