1879472249 has 2 divisors, whose sum is σ = 1879472250. Its totient is φ = 1879472248.

The previous prime is 1879472207. The next prime is 1879472261. The reversal of 1879472249 is 9422749781.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1806250000 + 73222249 = 42500^2 + 8557^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1879472249 is a prime.

It is a super-2 number, since 2×1879472249² = 7064831869522236002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1879472249.

It is not a weakly prime, because it can be changed into another prime (1879472269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 939736124 + 939736125.

It is an arithmetic number, because the mean of its divisors is an integer number (939736125).

Almost surely, 2^1879472249 is an apocalyptic number.

It is an amenable number.

1879472249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1879472249 is an equidigital number, since it uses as much as digits as its factorization.

1879472249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 53.

The square root of 1879472249 is about 43352.8805156013. The cubic root of 1879472249 is about 1234.0856599997.

The spelling of 1879472249 in words is "one billion, eight hundred seventy-nine million, four hundred seventy-two thousand, two hundred forty-nine".