1973637872 has 10 divisors (see below), whose sum is σ = 3823923408. Its totient is φ = 986818928.

The previous prime is 1973637871. The next prime is 1973637877. The reversal of 1973637872 is 2787363791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1973637871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61676168 + ... + 61676199.

Almost surely, 2^1973637872 is an apocalyptic number.

It is an amenable number.

1973637872 is a deficient number, since it is larger than the sum of its proper divisors (1850285536).

1973637872 is a wasteful number, since it uses less digits than its factorization.

1973637872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123352375 (or 123352369 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 53.

The square root of 1973637872 is about 44425.6443059636. The cubic root of 1973637872 is about 1254.3608480715.

The spelling of 1973637872 in words is "one billion, nine hundred seventy-three million, six hundred thirty-seven thousand, eight hundred seventy-two".