379429991 has 2 divisors, whose sum is σ = 379429992. Its totient is φ = 379429990.

The previous prime is 379429957. The next prime is 379430027. The reversal of 379429991 is 199924973.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 379429991 - 2⁶ = 379429927 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (379429901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189714995 + 189714996.

It is an arithmetic number, because the mean of its divisors is an integer number (189714996).

Almost surely, 2^379429991 is an apocalyptic number.

379429991 is a deficient number, since it is larger than the sum of its proper divisors (1).

379429991 is an equidigital number, since it uses as much as digits as its factorization.

379429991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1102248, while the sum is 53.

The square root of 379429991 is about 19478.9627803946. The cubic root of 379429991 is about 723.9532995680.

The spelling of 379429991 in words is "three hundred seventy-nine million, four hundred twenty-nine thousand, nine hundred ninety-one".