76634849 has 8 divisors (see below), whose sum is σ = 80578920. Its totient is φ = 72777600.

The previous prime is 76634843. The next prime is 76634879. The reversal of 76634849 is 94843667.

It can be written as a sum of positive squares in 4 ways, for example, as 7661824 + 68973025 = 2768^2 + 8305^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76634849 - 2¹⁶ = 76569313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76634843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19892 + ... + 23429.

It is an arithmetic number, because the mean of its divisors is an integer number (10072365).

Almost surely, 2^76634849 is an apocalyptic number.

It is an amenable number.

76634849 is a deficient number, since it is larger than the sum of its proper divisors (3944071).

76634849 is a wasteful number, since it uses less digits than its factorization.

76634849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43411.

The product of its digits is 870912, while the sum is 47.

The square root of 76634849 is about 8754.1332523557. The cubic root of 76634849 is about 424.7585230309.

The spelling of 76634849 in words is "seventy-six million, six hundred thirty-four thousand, eight hundred forty-nine".