77742352 has 10 divisors (see below), whose sum is σ = 150625838. Its totient is φ = 38871168.

The previous prime is 77742349. The next prime is 77742367. The reversal of 77742352 is 25324777.

It can be written as a sum of positive squares in only one way, i.e., 77158656 + 583696 = 8784^2 + 764^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2429433 + ... + 2429464.

Almost surely, 2^77742352 is an apocalyptic number.

It is an amenable number.

77742352 is a deficient number, since it is larger than the sum of its proper divisors (72883486).

77742352 is a wasteful number, since it uses less digits than its factorization.

77742352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4858905 (or 4858899 counting only the distinct ones).

The product of its digits is 82320, while the sum is 37.

The square root of 77742352 is about 8817.1623553159. The cubic root of 77742352 is about 426.7949039450.

The spelling of 77742352 in words is "seventy-seven million, seven hundred forty-two thousand, three hundred fifty-two".