70556407 has 2 divisors, whose sum is σ = 70556408. Its totient is φ = 70556406.

The previous prime is 70556399. The next prime is 70556413. The reversal of 70556407 is 70465507.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70556407 - 2³ = 70556399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70556807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35278203 + 35278204.

It is an arithmetic number, because the mean of its divisors is an integer number (35278204).

Almost surely, 2^70556407 is an apocalyptic number.

70556407 is a deficient number, since it is larger than the sum of its proper divisors (1).

70556407 is an equidigital number, since it uses as much as digits as its factorization.

70556407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 70556407 is about 8399.7861282297. The cubic root of 70556407 is about 413.2176075748.

The spelling of 70556407 in words is "seventy million, five hundred fifty-six thousand, four hundred seven".