15716980 has 24 divisors (see below), whose sum is σ = 33136488. Its totient is φ = 6261888.

The previous prime is 15716977. The next prime is 15716983. The reversal of 15716980 is 8961751.

It is an interprime number because it is at equal distance from previous prime (15716977) and next prime (15716983).

It can be written as a sum of positive squares in 4 ways, for example, as 381924 + 15335056 = 618^2 + 3916^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15716983) 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, 4122 + ... + 6958.

It is an arithmetic number, because the mean of its divisors is an integer number (1380687).

Almost surely, 2^15716980 is an apocalyptic number.

15716980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15716980 is an abundant number, since it is smaller than the sum of its proper divisors (17419508).

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

15716980 is a wasteful number, since it uses less digits than its factorization.

15716980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123 (or 3121 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 15716980 is about 3964.4646549061. The cubic root of 15716980 is about 250.4896005393.

The spelling of 15716980 in words is "fifteen million, seven hundred sixteen thousand, nine hundred eighty".