76938477 has 24 divisors (see below), whose sum is σ = 130184352. Its totient is φ = 39967200.

The previous prime is 76938469. The next prime is 76938517. The reversal of 76938477 is 77483967.

It is not a de Polignac number, because 76938477 - 2³ = 76938469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76938077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22174 + ... + 25407.

It is an arithmetic number, because the mean of its divisors is an integer number (5424348).

Almost surely, 2^76938477 is an apocalyptic number.

76938477 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

76938477 is a deficient number, since it is larger than the sum of its proper divisors (53245875).

76938477 is a wasteful number, since it uses less digits than its factorization.

76938477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47609 (or 47602 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 51.

The square root of 76938477 is about 8771.4580885962. The cubic root of 76938477 is about 425.3187495750.

Subtracting 76938477 from its reverse (77483967), we obtain a triangular number (545490 = T₁₀₄₄).

The spelling of 76938477 in words is "seventy-six million, nine hundred thirty-eight thousand, four hundred seventy-seven".