1992951 has 16 divisors (see below), whose sum is σ = 2974720. Its totient is φ = 1318680.

The previous prime is 1992937. The next prime is 1992953. The reversal of 1992951 is 1592991.

It is not a de Polignac number, because 1992951 - 2⁵ = 1992919 is a prime.

It is a Duffinian number.

1992951 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5856 + ... + 6186.

It is an arithmetic number, because the mean of its divisors is an integer number (185920).

2^1992951 is an apocalyptic number.

1992951 is a deficient number, since it is larger than the sum of its proper divisors (981769).

1992951 is a wasteful number, since it uses less digits than its factorization.

1992951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 557 counting only the distinct ones).

The product of its digits is 7290, while the sum is 36.

The square root of 1992951 is about 1411.7191647066. The cubic root of 1992951 is about 125.8439110250.

The spelling of 1992951 in words is "one million, nine hundred ninety-two thousand, nine hundred fifty-one".