652971854 has 4 divisors (see below), whose sum is σ = 979457784. Its totient is φ = 326485926.

The previous prime is 652971833. The next prime is 652971857. The reversal of 652971854 is 458179256.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 652971799 and 652971808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652971857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163242962 + ... + 163242965.

It is an arithmetic number, because the mean of its divisors is an integer number (244864446).

Almost surely, 2^652971854 is an apocalyptic number.

652971854 is a deficient number, since it is larger than the sum of its proper divisors (326485930).

652971854 is a wasteful number, since it uses less digits than its factorization.

652971854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326485929.

The product of its digits is 604800, while the sum is 47.

The square root of 652971854 is about 25553.3139533799. The cubic root of 652971854 is about 867.5572708413.

The spelling of 652971854 in words is "six hundred fifty-two million, nine hundred seventy-one thousand, eight hundred fifty-four".