70403013 has 10 divisors (see below), whose sum is σ = 105170054. Its totient is φ = 46935288.

The previous prime is 70403009. The next prime is 70403029. The reversal of 70403013 is 31030407.

It can be written as a sum of positive squares in only one way, i.e., 54863649 + 15539364 = 7407^2 + 3942^2 .

It is not a de Polignac number, because 70403013 - 2² = 70403009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70403063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 434506 + ... + 434667.

Almost surely, 2^70403013 is an apocalyptic number.

It is an amenable number.

70403013 is a deficient number, since it is larger than the sum of its proper divisors (34767041).

70403013 is an equidigital number, since it uses as much as digits as its factorization.

70403013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869185 (or 869176 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 70403013 is about 8390.6503323640. The cubic root of 70403013 is about 412.9179367424.

The spelling of 70403013 in words is "seventy million, four hundred three thousand, thirteen".