77532946 has 8 divisors (see below), whose sum is σ = 116405820. Its totient is φ = 38731008.

The previous prime is 77532943. The next prime is 77532947. The reversal of 77532946 is 64923577.

It can be written as a sum of positive squares in 2 ways, for example, as 71825625 + 5707321 = 8475^2 + 2389^2 .

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

It is a super-2 number, since 2×77532946² = 12022715430877832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77532943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14911 + ... + 19426.

Almost surely, 2^77532946 is an apocalyptic number.

77532946 is a deficient number, since it is larger than the sum of its proper divisors (38872874).

77532946 is a wasteful number, since it uses less digits than its factorization.

77532946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35468.

The product of its digits is 317520, while the sum is 43.

The square root of 77532946 is about 8805.2794390638. The cubic root of 77532946 is about 426.4113559099.

The spelling of 77532946 in words is "seventy-seven million, five hundred thirty-two thousand, nine hundred forty-six".