15772983 has 16 divisors (see below), whose sum is σ = 22283520. Its totient is φ = 9896256.

The previous prime is 15772979. The next prime is 15772993. The reversal of 15772983 is 38927751.

It is not a de Polignac number, because 15772983 - 2² = 15772979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15772973) 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, 8691 + ... + 10347.

It is an arithmetic number, because the mean of its divisors is an integer number (1392720).

Almost surely, 2^15772983 is an apocalyptic number.

15772983 is a deficient number, since it is larger than the sum of its proper divisors (6510537).

15772983 is a wasteful number, since it uses less digits than its factorization.

15772983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846.

The product of its digits is 105840, while the sum is 42.

The square root of 15772983 is about 3971.5214968573. The cubic root of 15772983 is about 250.7867640784.

It can be divided in two parts, 1577 and 2983, that added together give a triangular number (4560 = T₉₅).

The spelling of 15772983 in words is "fifteen million, seven hundred seventy-two thousand, nine hundred eighty-three".