99780796 has 24 divisors (see below), whose sum is σ = 177344720. Its totient is φ = 49116672.

The previous prime is 99780781. The next prime is 99780841. The reversal of 99780796 is 69708799.

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, 88291 + ... + 89413.

Almost surely, 2^99780796 is an apocalyptic number.

It is an amenable number.

99780796 is a deficient number, since it is larger than the sum of its proper divisors (77563924).

99780796 is a wasteful number, since it uses less digits than its factorization.

99780796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453 (or 1451 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 55.

The square root of 99780796 is about 9989.0337871087. The cubic root of 99780796 is about 463.8194836349.

It can be divided in two parts, 99780 and 796, that added together give a triangular number (100576 = T₄₄₈).

The spelling of 99780796 in words is "ninety-nine million, seven hundred eighty thousand, seven hundred ninety-six".