76863444 has 24 divisors (see below), whose sum is σ = 204969408. Its totient is φ = 21960960.

The previous prime is 76863431. The next prime is 76863461. The reversal of 76863444 is 44436867.

It is a super-2 number, since 2×76863444² = 11815978047082272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 76863396 and 76863405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457437 + ... + 457604.

It is an arithmetic number, because the mean of its divisors is an integer number (8540392).

Almost surely, 2^76863444 is an apocalyptic number.

It is an amenable number.

76863444 is an abundant number, since it is smaller than the sum of its proper divisors (128105964).

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

76863444 is a wasteful number, since it uses less digits than its factorization.

76863444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915055 (or 915053 counting only the distinct ones).

The product of its digits is 387072, while the sum is 42.

The square root of 76863444 is about 8767.1799342776. The cubic root of 76863444 is about 425.1804428708.

The spelling of 76863444 in words is "seventy-six million, eight hundred sixty-three thousand, four hundred forty-four".