77974006 has 16 divisors (see below), whose sum is σ = 127825920. Its totient is φ = 35378280.

The previous prime is 77973983. The next prime is 77974037. The reversal of 77974006 is 60047977.

It is a happy number.

It is a super-2 number, since 2×77974006² = 12159891223376072, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77974006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10435 + ... + 16273.

It is an arithmetic number, because the mean of its divisors is an integer number (7989120).

Almost surely, 2^77974006 is an apocalyptic number.

77974006 is a deficient number, since it is larger than the sum of its proper divisors (49851914).

77974006 is a wasteful number, since it uses less digits than its factorization.

77974006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6459.

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 77974006 is about 8830.2891232394. The cubic root of 77974006 is about 427.2183998665.

The spelling of 77974006 in words is "seventy-seven million, nine hundred seventy-four thousand, six".