76997406 has 8 divisors (see below), whose sum is σ = 153994824. Its totient is φ = 25665800.

The previous prime is 76997383. The next prime is 76997447. The reversal of 76997406 is 60479967.

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

76997406 is an admirable number.

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, 6416445 + ... + 6416456.

It is an arithmetic number, because the mean of its divisors is an integer number (19249353).

Almost surely, 2^76997406 is an apocalyptic number.

76997406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76997406 is a wasteful number, since it uses less digits than its factorization.

76997406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12832906.

The product of its (nonzero) digits is 571536, while the sum is 48.

The square root of 76997406 is about 8774.8165792796. The cubic root of 76997406 is about 425.4273090949.

The spelling of 76997406 in words is "seventy-six million, nine hundred ninety-seven thousand, four hundred six".