77380473 has 8 divisors (see below), whose sum is σ = 103242528. Its totient is φ = 51552704.

The previous prime is 77380469. The next prime is 77380519. The reversal of 77380473 is 37408377.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77380473 - 2² = 77380469 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77380453) 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, 2736 + ... + 12737.

It is an arithmetic number, because the mean of its divisors is an integer number (12905316).

Almost surely, 2^77380473 is an apocalyptic number.

It is an amenable number.

77380473 is a deficient number, since it is larger than the sum of its proper divisors (25862055).

77380473 is a wasteful number, since it uses less digits than its factorization.

77380473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17143.

The product of its (nonzero) digits is 98784, while the sum is 39.

The square root of 77380473 is about 8796.6171338760. The cubic root of 77380473 is about 426.1316516550.

The spelling of 77380473 in words is "seventy-seven million, three hundred eighty thousand, four hundred seventy-three".