1879797971 has 4 divisors (see below), whose sum is σ = 1925646744. Its totient is φ = 1833949200.

The previous prime is 1879797949. The next prime is 1879798013. The reversal of 1879797971 is 1797979781.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1879797971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1879797898 and 1879797907.

It is not an unprimeable number, because it can be changed into a prime (1879797671) 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, 22924325 + ... + 22924406.

It is an arithmetic number, because the mean of its divisors is an integer number (481411686).

Almost surely, 2^1879797971 is an apocalyptic number.

1879797971 is a deficient number, since it is larger than the sum of its proper divisors (45848773).

1879797971 is an equidigital number, since it uses as much as digits as its factorization.

1879797971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45848772.

The product of its digits is 14002632, while the sum is 65.

The square root of 1879797971 is about 43356.6369890470. The cubic root of 1879797971 is about 1234.1569469670.

The spelling of 1879797971 in words is "one billion, eight hundred seventy-nine million, seven hundred ninety-seven thousand, nine hundred seventy-one".