1892997 has 8 divisors (see below), whose sum is σ = 2804480. Its totient is φ = 1261980.

The previous prime is 1892983. The next prime is 1892999. The reversal of 1892997 is 7992981.

It is not a de Polignac number, because 1892997 - 2²⁰ = 844421 is a prime.

It is a d-powerful number, because it can be written as 1 + 8 + 9⁴ + 2 + 9⁶ + 9⁶ + 7⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1892999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35029 + ... + 35082.

It is an arithmetic number, because the mean of its divisors is an integer number (350560).

2^1892997 is an apocalyptic number.

It is an amenable number.

1892997 is a deficient number, since it is larger than the sum of its proper divisors (911483).

1892997 is an equidigital number, since it uses as much as digits as its factorization.

1892997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70120 (or 70114 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 1892997 is about 1375.8622750842. The cubic root of 1892997 is about 123.7038762913.

The spelling of 1892997 in words is "one million, eight hundred ninety-two thousand, nine hundred ninety-seven".