969876820 has 48 divisors (see below), whose sum is σ = 2258355456. Its totient is φ = 346896000.

The previous prime is 969876779. The next prime is 969876823. The reversal of 969876820 is 28678969.

It is a super-2 number, since 2×969876820² = 1881322091946624800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (969876823) 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, 22716 + ... + 49555.

It is an arithmetic number, because the mean of its divisors is an integer number (47049072).

Almost surely, 2^969876820 is an apocalyptic number.

It is an amenable number.

969876820 is an abundant number, since it is smaller than the sum of its proper divisors (1288478636).

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

969876820 is a wasteful number, since it uses less digits than its factorization.

969876820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72352 (or 72350 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 55.

The square root of 969876820 is about 31142.8454062887. The cubic root of 969876820 is about 989.8563951823.

The spelling of 969876820 in words is "nine hundred sixty-nine million, eight hundred seventy-six thousand, eight hundred twenty".