1957972 has 6 divisors (see below), whose sum is σ = 3426458. Its totient is φ = 978984.

The previous prime is 1957957. The next prime is 1957981. The reversal of 1957972 is 2797591.

It can be written as a sum of positive squares in only one way, i.e., 1602756 + 355216 = 1266^2 + 596^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244743 + ... + 244750.

2^1957972 is an apocalyptic number.

It is an amenable number.

1957972 is a deficient number, since it is larger than the sum of its proper divisors (1468486).

1957972 is a wasteful number, since it uses less digits than its factorization.

1957972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489497 (or 489495 counting only the distinct ones).

The product of its digits is 39690, while the sum is 40.

The square root of 1957972 is about 1399.2755268352. The cubic root of 1957972 is about 125.1033172475.

The spelling of 1957972 in words is "one million, nine hundred fifty-seven thousand, nine hundred seventy-two".