77427104 has 12 divisors (see below), whose sum is σ = 152434674. Its totient is φ = 38713536.

The previous prime is 77427101. The next prime is 77427113. The reversal of 77427104 is 40172477.

It can be written as a sum of positive squares in only one way, i.e., 49843600 + 27583504 = 7060^2 + 5252^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 2419597 = 77427104 / (7 + 7 + 4 + 2 + 7 + 1 + 0 + 4).

It is not an unprimeable number, because it can be changed into a prime (77427101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1209767 + ... + 1209830.

Almost surely, 2^77427104 is an apocalyptic number.

It is an amenable number.

77427104 is a deficient number, since it is larger than the sum of its proper divisors (75007570).

77427104 is a wasteful number, since it uses less digits than its factorization.

77427104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419607 (or 2419599 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 32.

The square root of 77427104 is about 8799.2672422197. The cubic root of 77427104 is about 426.2172329137.

The spelling of 77427104 in words is "seventy-seven million, four hundred twenty-seven thousand, one hundred four".