1979955237 has 16 divisors (see below), whose sum is σ = 2845082240. Its totient is φ = 1217547072.

The previous prime is 1979955233. The next prime is 1979955239. The reversal of 1979955237 is 7325599791.

It is not a de Polignac number, because 1979955237 - 2² = 1979955233 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979955233) 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, 37968 + ... + 73494.

It is an arithmetic number, because the mean of its divisors is an integer number (177817640).

Almost surely, 2^1979955237 is an apocalyptic number.

It is an amenable number.

1979955237 is a deficient number, since it is larger than the sum of its proper divisors (865127003).

1979955237 is a wasteful number, since it uses less digits than its factorization.

1979955237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36972.

The product of its digits is 5358150, while the sum is 57.

The square root of 1979955237 is about 44496.6879329237. The cubic root of 1979955237 is about 1255.6977727404.

The spelling of 1979955237 in words is "one billion, nine hundred seventy-nine million, nine hundred fifty-five thousand, two hundred thirty-seven".