76780473 has 32 divisors (see below), whose sum is σ = 128117760. Its totient is φ = 39735360.

The previous prime is 76780433. The next prime is 76780477. The reversal of 76780473 is 37408767.

It is not a de Polignac number, because 76780473 - 2⁹ = 76779961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76780477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87111 + ... + 87987.

It is an arithmetic number, because the mean of its divisors is an integer number (4003680).

Almost surely, 2^76780473 is an apocalyptic number.

It is an amenable number.

76780473 is a deficient number, since it is larger than the sum of its proper divisors (51337287).

76780473 is a wasteful number, since it uses less digits than its factorization.

76780473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277.

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 76780473 is about 8762.4467473417. The cubic root of 76780473 is about 425.0273993869.

The spelling of 76780473 in words is "seventy-six million, seven hundred eighty thousand, four hundred seventy-three".