2072731 has 2 divisors, whose sum is σ = 2072732. Its totient is φ = 2072730.

The previous prime is 2072701. The next prime is 2072743. The reversal of 2072731 is 1372702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2072731 - 2⁵ = 2072699 is a prime.

It is a super-2 number, since 2×2072731² = 8592427596722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2072701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1036365 + 1036366.

It is an arithmetic number, because the mean of its divisors is an integer number (1036366).

2^2072731 is an apocalyptic number.

2072731 is a deficient number, since it is larger than the sum of its proper divisors (1).

2072731 is an equidigital number, since it uses as much as digits as its factorization.

2072731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 2072731 is about 1439.6982322695. The cubic root of 2072731 is about 127.5012123427.

The spelling of 2072731 in words is "two million, seventy-two thousand, seven hundred thirty-one".