76481770 has 8 divisors (see below), whose sum is σ = 137667204. Its totient is φ = 30592704.

The previous prime is 76481753. The next prime is 76481771. The reversal of 76481770 is 7718467.

It can be written as a sum of positive squares in 2 ways, for example, as 68376361 + 8105409 = 8269^2 + 2847^2 .

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

It is a super-2 number, since 2×76481770² = 11698922284665800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76481771) 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, 3824079 + ... + 3824098.

Almost surely, 2^76481770 is an apocalyptic number.

76481770 is a deficient number, since it is larger than the sum of its proper divisors (61185434).

76481770 is a wasteful number, since it uses less digits than its factorization.

76481770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7648184.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 76481770 is about 8745.3856404392. The cubic root of 76481770 is about 424.4755144837.

The spelling of 76481770 in words is "seventy-six million, four hundred eighty-one thousand, seven hundred seventy".