853663734 has 48 divisors (see below), whose sum is σ = 2306004480. Its totient is φ = 221730480.

The previous prime is 853663717. The next prime is 853663757. The reversal of 853663734 is 437366358.

853663734 is a `hidden beast` number, since 8 + 5 + 3 + 6 + 637 + 3 + 4 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 853663734.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 306574 + ... + 309345.

It is an arithmetic number, because the mean of its divisors is an integer number (48041760).

Almost surely, 2^853663734 is an apocalyptic number.

853663734 is an abundant number, since it is smaller than the sum of its proper divisors (1452340746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

853663734 is a wasteful number, since it uses less digits than its factorization.

853663734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615945 (or 615942 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

The square root of 853663734 is about 29217.5244331206. The cubic root of 853663734 is about 948.6272820596.

The spelling of 853663734 in words is "eight hundred fifty-three million, six hundred sixty-three thousand, seven hundred thirty-four".