755478379 has 2 divisors, whose sum is σ = 755478380. Its totient is φ = 755478378.

The previous prime is 755478359. The next prime is 755478413. The reversal of 755478379 is 973874557.

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-755478379 is a prime.

It is a super-2 number, since 2×755478379² = 1141495162272935282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (755478319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377739189 + 377739190.

It is an arithmetic number, because the mean of its divisors is an integer number (377739190).

Almost surely, 2^755478379 is an apocalyptic number.

755478379 is a deficient number, since it is larger than the sum of its proper divisors (1).

755478379 is an equidigital number, since it uses as much as digits as its factorization.

755478379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7408800, while the sum is 55.

The square root of 755478379 is about 27485.9669467894. The cubic root of 755478379 is about 910.7671263496.

The spelling of 755478379 in words is "seven hundred fifty-five million, four hundred seventy-eight thousand, three hundred seventy-nine".