1672690772 has 12 divisors (see below), whose sum is σ = 2928949716. Its totient is φ = 835848000.

The previous prime is 1672690763. The next prime is 1672690781. The reversal of 1672690772 is 2770962761.

It is an interprime number because it is at equal distance from previous prime (1672690763) and next prime (1672690781).

It can be written as a sum of positive squares in 2 ways, for example, as 259983376 + 1412707396 = 16124^2 + 37586^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116729 + ... + 130272.

It is an arithmetic number, because the mean of its divisors is an integer number (244079143).

Almost surely, 2^1672690772 is an apocalyptic number.

It is an amenable number.

1672690772 is a deficient number, since it is larger than the sum of its proper divisors (1256258944).

1672690772 is a wasteful number, since it uses less digits than its factorization.

1672690772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248698 (or 248696 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 1672690772 is about 40898.5424190154. The cubic root of 1672690772 is about 1187.0578572179.

The spelling of 1672690772 in words is "one billion, six hundred seventy-two million, six hundred ninety thousand, seven hundred seventy-two".