77631348 has 24 divisors (see below), whose sum is σ = 189016128. Its totient is φ = 24751936.

The previous prime is 77631343. The next prime is 77631349. The reversal of 77631348 is 84313677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77631341) 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, 140361 + ... + 140912.

It is an arithmetic number, because the mean of its divisors is an integer number (7875672).

Almost surely, 2^77631348 is an apocalyptic number.

It is an amenable number.

77631348 is an abundant number, since it is smaller than the sum of its proper divisors (111384780).

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

77631348 is a wasteful number, since it uses less digits than its factorization.

77631348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281303 (or 281301 counting only the distinct ones).

The product of its digits is 84672, while the sum is 39.

The square root of 77631348 is about 8810.8653377520. The cubic root of 77631348 is about 426.5916749169.

The spelling of 77631348 in words is "seventy-seven million, six hundred thirty-one thousand, three hundred forty-eight".