76749844 has 6 divisors (see below), whose sum is σ = 134312234. Its totient is φ = 38374920.

The previous prime is 76749839. The next prime is 76749847. The reversal of 76749844 is 44894767.

It can be written as a sum of positive squares in only one way, i.e., 52128400 + 24621444 = 7220^2 + 4962^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76749847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9593727 + ... + 9593734.

Almost surely, 2^76749844 is an apocalyptic number.

It is an amenable number.

76749844 is a deficient number, since it is larger than the sum of its proper divisors (57562390).

76749844 is a wasteful number, since it uses less digits than its factorization.

76749844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19187465 (or 19187463 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 49.

The square root of 76749844 is about 8760.6988305728. The cubic root of 76749844 is about 424.9708750514.

The spelling of 76749844 in words is "seventy-six million, seven hundred forty-nine thousand, eight hundred forty-four".