783976980 has 48 divisors (see below), whose sum is σ = 2265951744. Its totient is φ = 202316160.

The previous prime is 783976957. The next prime is 783976987. The reversal of 783976980 is 89679387.

It is a super-2 number, since 2×783976980² = 1229239810339840800, 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 783976980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (783976987) 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, 208887 + ... + 212606.

It is an arithmetic number, because the mean of its divisors is an integer number (47207328).

Almost surely, 2^783976980 is an apocalyptic number.

It is an amenable number.

783976980 is an abundant number, since it is smaller than the sum of its proper divisors (1481974764).

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

783976980 is a wasteful number, since it uses less digits than its factorization.

783976980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421536 (or 421534 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 57.

The square root of 783976980 is about 27999.5889255539. The cubic root of 783976980 is about 922.0782334727.

The spelling of 783976980 in words is "seven hundred eighty-three million, nine hundred seventy-six thousand, nine hundred eighty".