601990379 has 2 divisors, whose sum is σ = 601990380. Its totient is φ = 601990378.

The previous prime is 601990373. The next prime is 601990387. The reversal of 601990379 is 973099106.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-601990379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (601990373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300995189 + 300995190.

It is an arithmetic number, because the mean of its divisors is an integer number (300995190).

Almost surely, 2^601990379 is an apocalyptic number.

601990379 is a deficient number, since it is larger than the sum of its proper divisors (1).

601990379 is an equidigital number, since it uses as much as digits as its factorization.

601990379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 601990379 is about 24535.4922306442. The cubic root of 601990379 is about 844.3642751756.

The spelling of 601990379 in words is "six hundred one million, nine hundred ninety thousand, three hundred seventy-nine".