70320407 has 8 divisors (see below), whose sum is σ = 73941120. Its totient is φ = 66746680.

The previous prime is 70320379. The next prime is 70320421. The reversal of 70320407 is 70402307.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70320407 - 2¹⁰ = 70319383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70320907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8657 + ... + 14682.

It is an arithmetic number, because the mean of its divisors is an integer number (9242640).

Almost surely, 2^70320407 is an apocalyptic number.

70320407 is a deficient number, since it is larger than the sum of its proper divisors (3620713).

70320407 is a wasteful number, since it uses less digits than its factorization.

70320407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23493.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 70320407 is about 8385.7263847564. The cubic root of 70320407 is about 412.7563771401.

The spelling of 70320407 in words is "seventy million, three hundred twenty thousand, four hundred seven".