1792249897 has 4 divisors (see below), whose sum is σ = 1792340676. Its totient is φ = 1792159120.

The previous prime is 1792249867. The next prime is 1792249969. The reversal of 1792249897 is 7989422971.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7989422971 = 2999 ⋅2664029.

It can be written as a sum of positive squares in 2 ways, for example, as 1121647081 + 670602816 = 33491^2 + 25896^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1792249897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1792249807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1858 + ... + 59899.

It is an arithmetic number, because the mean of its divisors is an integer number (448085169).

Almost surely, 2^1792249897 is an apocalyptic number.

It is an amenable number.

1792249897 is a deficient number, since it is larger than the sum of its proper divisors (90779).

1792249897 is an equidigital number, since it uses as much as digits as its factorization.

1792249897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90778.

The product of its digits is 4572288, while the sum is 58.

The square root of 1792249897 is about 42334.9725050106. The cubic root of 1792249897 is about 1214.6920470243.

The spelling of 1792249897 in words is "one billion, seven hundred ninety-two million, two hundred forty-nine thousand, eight hundred ninety-seven".