77475982 has 8 divisors (see below), whose sum is σ = 117342576. Its totient is φ = 38361792.

The previous prime is 77475973. The next prime is 77475997. The reversal of 77475982 is 28957477.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187843 + ... + 188254.

It is an arithmetic number, because the mean of its divisors is an integer number (14667822).

Almost surely, 2^77475982 is an apocalyptic number.

77475982 is a deficient number, since it is larger than the sum of its proper divisors (39866594).

77475982 is a wasteful number, since it uses less digits than its factorization.

77475982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376202.

The product of its digits is 987840, while the sum is 49.

The square root of 77475982 is about 8802.0441943903. The cubic root of 77475982 is about 426.3069011851.

The spelling of 77475982 in words is "seventy-seven million, four hundred seventy-five thousand, nine hundred eighty-two".