85907023801 has 3 divisors (see below), whose sum is σ = 85907316901. Its totient is φ = 85906730702.

The previous prime is 85907023781. The next prime is 85907023817. The reversal of 85907023801 is 10832070958.

The square root of 85907023801 is 293099.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10832070958 = 2 ⋅5416035479.

It is not a de Polignac number, because 85907023801 - 2¹⁵ = 85906991033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85907053801) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 146550 + ... + 439648.

Almost surely, 2^85907023801 is an apocalyptic number.

85907023801 is the 293099-th square number.

85907023801 is the 146550-th centered octagonal number.

It is an amenable number.

85907023801 is a deficient number, since it is larger than the sum of its proper divisors (293100).

85907023801 is an frugal number, since it uses more digits than its factorization.

85907023801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586198 (or 293099 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 85907023801 in words is "eighty-five billion, nine hundred seven million, twenty-three thousand, eight hundred one".