70403479 has 4 divisors (see below), whose sum is σ = 70437400. Its totient is φ = 70369560.

The previous prime is 70403471. The next prime is 70403497. The reversal of 70403479 is 97430407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97430407 = 337 ⋅289111.

It is a cyclic number.

It is not a de Polignac number, because 70403479 - 2³ = 70403471 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 (70403471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13629 + ... + 18070.

It is an arithmetic number, because the mean of its divisors is an integer number (17609350).

Almost surely, 2^70403479 is an apocalyptic number.

70403479 is a deficient number, since it is larger than the sum of its proper divisors (33921).

70403479 is a wasteful number, since it uses less digits than its factorization.

70403479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33920.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 70403479 is about 8390.6781013217. The cubic root of 70403479 is about 412.9188477798.

The spelling of 70403479 in words is "seventy million, four hundred three thousand, four hundred seventy-nine".