76748749 has 12 divisors (see below), whose sum is σ = 97396128. Its totient is φ = 59803800.

The previous prime is 76748747. The next prime is 76748783. The reversal of 76748749 is 94784767.

It is not a de Polignac number, because 76748749 - 2¹ = 76748747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76748696 and 76748705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76748741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70657 + ... + 71734.

It is an arithmetic number, because the mean of its divisors is an integer number (8116344).

Almost surely, 2^76748749 is an apocalyptic number.

It is an amenable number.

76748749 is a deficient number, since it is larger than the sum of its proper divisors (20647379).

76748749 is a wasteful number, since it uses less digits than its factorization.

76748749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142416 (or 142409 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 52.

The square root of 76748749 is about 8760.6363353355. The cubic root of 76748749 is about 424.9688540036.

The spelling of 76748749 in words is "seventy-six million, seven hundred forty-eight thousand, seven hundred forty-nine".