77071492 has 12 divisors (see below), whose sum is σ = 135905616. Its totient is φ = 38241320.

The previous prime is 77071483. The next prime is 77071499. The reversal of 77071492 is 29417077.

It is not an unprimeable number, because it can be changed into a prime (77071499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73018 + ... + 74065.

It is an arithmetic number, because the mean of its divisors is an integer number (11325468).

Almost surely, 2^77071492 is an apocalyptic number.

It is an amenable number.

77071492 is a deficient number, since it is larger than the sum of its proper divisors (58834124).

77071492 is a wasteful number, since it uses less digits than its factorization.

77071492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147218 (or 147216 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 37.

The square root of 77071492 is about 8779.0370770375. The cubic root of 77071492 is about 425.5637124096.

The spelling of 77071492 in words is "seventy-seven million, seventy-one thousand, four hundred ninety-two".