70974479 has 2 divisors, whose sum is σ = 70974480. Its totient is φ = 70974478.

The previous prime is 70974457. The next prime is 70974487. The reversal of 70974479 is 97447907.

It is a strong prime.

It is an emirp because it is prime and its reverse (97447907) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70974479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70974679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35487239 + 35487240.

It is an arithmetic number, because the mean of its divisors is an integer number (35487240).

Almost surely, 2^70974479 is an apocalyptic number.

70974479 is a deficient number, since it is larger than the sum of its proper divisors (1).

70974479 is an equidigital number, since it uses as much as digits as its factorization.

70974479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 70974479 is about 8424.6352443296. The cubic root of 70974479 is about 414.0321550013.

The spelling of 70974479 in words is "seventy million, nine hundred seventy-four thousand, four hundred seventy-nine".