70398379 has 2 divisors, whose sum is σ = 70398380. Its totient is φ = 70398378.

The previous prime is 70398347. The next prime is 70398397. The reversal of 70398379 is 97389307.

Together with next prime (70398397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70398379 - 2⁵ = 70398347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70390379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35199189 + 35199190.

It is an arithmetic number, because the mean of its divisors is an integer number (35199190).

Almost surely, 2^70398379 is an apocalyptic number.

70398379 is a deficient number, since it is larger than the sum of its proper divisors (1).

70398379 is an equidigital number, since it uses as much as digits as its factorization.

70398379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 70398379 is about 8390.3741871266. The cubic root of 70398379 is about 412.9088769801.

The spelling of 70398379 in words is "seventy million, three hundred ninety-eight thousand, three hundred seventy-nine".