70391703 has 4 divisors (see below), whose sum is σ = 93855608. Its totient is φ = 46927800.

The previous prime is 70391689. The next prime is 70391749. The reversal of 70391703 is 30719307.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 70391703 - 2¹⁰ = 70390679 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 (70391773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11731948 + ... + 11731953.

It is an arithmetic number, because the mean of its divisors is an integer number (23463902).

Almost surely, 2^70391703 is an apocalyptic number.

70391703 is a deficient number, since it is larger than the sum of its proper divisors (23463905).

70391703 is a wasteful number, since it uses less digits than its factorization.

70391703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23463904.

The product of its (nonzero) digits is 3969, while the sum is 30.

The square root of 70391703 is about 8389.9763408486. The cubic root of 70391703 is about 412.8958242799.

The spelling of 70391703 in words is "seventy million, three hundred ninety-one thousand, seven hundred three".