379721123 has 2 divisors, whose sum is σ = 379721124. Its totient is φ = 379721122.

The previous prime is 379721117. The next prime is 379721149. The reversal of 379721123 is 321127973.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 379721123 - 2¹⁴ = 379704739 is a prime.

It is a super-2 number, since 2×379721123² = 288376262504762258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (379721723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189860561 + 189860562.

It is an arithmetic number, because the mean of its divisors is an integer number (189860562).

Almost surely, 2^379721123 is an apocalyptic number.

379721123 is a deficient number, since it is larger than the sum of its proper divisors (1).

379721123 is an equidigital number, since it uses as much as digits as its factorization.

379721123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 35.

The square root of 379721123 is about 19486.4343326325. The cubic root of 379721123 is about 724.1384124074.

The spelling of 379721123 in words is "three hundred seventy-nine million, seven hundred twenty-one thousand, one hundred twenty-three".