76421086 has 32 divisors (see below), whose sum is σ = 141566400. Its totient is φ = 30820608.

The previous prime is 76421053. The next prime is 76421087. The reversal of 76421086 is 68012467.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76421087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8386 + ... + 14938.

It is an arithmetic number, because the mean of its divisors is an integer number (4423950).

Almost surely, 2^76421086 is an apocalyptic number.

76421086 is a deficient number, since it is larger than the sum of its proper divisors (65145314).

76421086 is a wasteful number, since it uses less digits than its factorization.

76421086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6593 (or 6579 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 76421086 is about 8741.9154651598. The cubic root of 76421086 is about 424.3632189311.

The spelling of 76421086 in words is "seventy-six million, four hundred twenty-one thousand, eighty-six".