88779820 has 48 divisors (see below), whose sum is σ = 191213568. Its totient is φ = 34614720.

The previous prime is 88779811. The next prime is 88779829. The reversal of 88779820 is 2897788.

It is an interprime number because it is at equal distance from previous prime (88779811) and next prime (88779829).

It is not an unprimeable number, because it can be changed into a prime (88779829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145957 + ... + 146563.

It is an arithmetic number, because the mean of its divisors is an integer number (3983616).

Almost surely, 2^88779820 is an apocalyptic number.

It is an amenable number.

88779820 is an abundant number, since it is smaller than the sum of its proper divisors (102433748).

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

88779820 is a wasteful number, since it uses less digits than its factorization.

88779820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 49.

The square root of 88779820 is about 9422.3043890547. The cubic root of 88779820 is about 446.1060229084.

The spelling of 88779820 in words is "eighty-eight million, seven hundred seventy-nine thousand, eight hundred twenty".