1391672 has 16 divisors (see below), whose sum is σ = 2646240. Its totient is φ = 686016.

The previous prime is 1391669. The next prime is 1391701. The reversal of 1391672 is 2761931.

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, 608 + ... + 1775.

It is an arithmetic number, because the mean of its divisors is an integer number (165390).

2^1391672 is an apocalyptic number.

It is an amenable number.

1391672 is a deficient number, since it is larger than the sum of its proper divisors (1254568).

1391672 is a wasteful number, since it uses less digits than its factorization.

1391672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462 (or 2458 counting only the distinct ones).

The product of its digits is 2268, while the sum is 29.

The square root of 1391672 is about 1179.6914850926. The cubic root of 1391672 is about 111.6466328754.

The spelling of 1391672 in words is "one million, three hundred ninety-one thousand, six hundred seventy-two".