77670476 has 12 divisors (see below), whose sum is σ = 146379072. Its totient is φ = 35847888.

The previous prime is 77670443. The next prime is 77670479. The reversal of 77670476 is 67407677.

It is not an unprimeable number, because it can be changed into a prime (77670479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746780 + ... + 746883.

It is an arithmetic number, because the mean of its divisors is an integer number (12198256).

Almost surely, 2^77670476 is an apocalyptic number.

It is an amenable number.

77670476 is a deficient number, since it is larger than the sum of its proper divisors (68708596).

77670476 is a wasteful number, since it uses less digits than its factorization.

77670476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493680 (or 1493678 counting only the distinct ones).

The product of its (nonzero) digits is 345744, while the sum is 44.

The square root of 77670476 is about 8813.0854982804. The cubic root of 77670476 is about 426.6633335786.

The spelling of 77670476 in words is "seventy-seven million, six hundred seventy thousand, four hundred seventy-six".