77994903 has 8 divisors (see below), whose sum is σ = 118849408. Its totient is φ = 44568504.

The previous prime is 77994893. The next prime is 77994907. The reversal of 77994903 is 30949977.

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

It is not a de Polignac number, because 77994903 - 2⁵ = 77994871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77994907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1857001 + ... + 1857042.

It is an arithmetic number, because the mean of its divisors is an integer number (14856176).

Almost surely, 2^77994903 is an apocalyptic number.

77994903 is a deficient number, since it is larger than the sum of its proper divisors (40854505).

77994903 is a wasteful number, since it uses less digits than its factorization.

77994903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714053.

The product of its (nonzero) digits is 428652, while the sum is 48.

The square root of 77994903 is about 8831.4723008115. The cubic root of 77994903 is about 427.2565612400.

The spelling of 77994903 in words is "seventy-seven million, nine hundred ninety-four thousand, nine hundred three".