76998774 has 8 divisors (see below), whose sum is σ = 153997560. Its totient is φ = 25666256.

The previous prime is 76998769. The next prime is 76998781. The reversal of 76998774 is 47789967.

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

76998774 is an admirable number.

It is a super-2 number, since 2×76998774² = 11857622395006152, which contains 22 as substring.

It is a Curzon 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, 6416559 + ... + 6416570.

It is an arithmetic number, because the mean of its divisors is an integer number (19249695).

Almost surely, 2^76998774 is an apocalyptic number.

76998774 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.

76998774 is a wasteful number, since it uses less digits than its factorization.

76998774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12833134.

The product of its digits is 5334336, while the sum is 57.

The square root of 76998774 is about 8774.8945292807. The cubic root of 76998774 is about 425.4298285786.

The spelling of 76998774 in words is "seventy-six million, nine hundred ninety-eight thousand, seven hundred seventy-four".