1072690 has 8 divisors (see below), whose sum is σ = 1930860. Its totient is φ = 429072.

The previous prime is 1072657. The next prime is 1072711. The reversal of 1072690 is 962701.

It can be written as a sum of positive squares in 2 ways, for example, as 881721 + 190969 = 939^2 + 437^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1072690² = 2301327672200, which contains 22 as substring.

It is an Ulam 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, 53625 + ... + 53644.

2^1072690 is an apocalyptic number.

1072690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1072690 is a deficient number, since it is larger than the sum of its proper divisors (858170).

1072690 is a wasteful number, since it uses less digits than its factorization.

1072690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107276.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 1072690 is about 1035.7074876624. The cubic root of 1072690 is about 102.3665524916.

It can be divided in two parts, 10726 and 90, that added together give a square (10816 = 104²).

The spelling of 1072690 in words is "one million, seventy-two thousand, six hundred ninety".