76871847 has 48 divisors (see below), whose sum is σ = 117869568. Its totient is φ = 44478720.

The previous prime is 76871833. The next prime is 76871849. The reversal of 76871847 is 74817867.

It is not a de Polignac number, because 76871847 - 2⁷ = 76871719 is a prime.

It is a super-2 number, since 2×76871847² = 11818561722382818, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 76871796 and 76871805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76871849) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1053003 + ... + 1053075.

It is an arithmetic number, because the mean of its divisors is an integer number (2455616).

Almost surely, 2^76871847 is an apocalyptic number.

76871847 is a deficient number, since it is larger than the sum of its proper divisors (40997721).

76871847 is a wasteful number, since it uses less digits than its factorization.

76871847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 187 counting only the distinct ones).

The product of its digits is 526848, while the sum is 48.

The square root of 76871847 is about 8767.6591516778. The cubic root of 76871847 is about 425.1959364131.

The spelling of 76871847 in words is "seventy-six million, eight hundred seventy-one thousand, eight hundred forty-seven".