70420903 has 16 divisors (see below), whose sum is σ = 85296960. Its totient is φ = 56851200.

The previous prime is 70420841. The next prime is 70420907. The reversal of 70420903 is 30902407.

It is not a de Polignac number, because 70420903 - 2¹⁷ = 70289831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70420907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4093 + ... + 12553.

It is an arithmetic number, because the mean of its divisors is an integer number (5331060).

Almost surely, 2^70420903 is an apocalyptic number.

70420903 is a deficient number, since it is larger than the sum of its proper divisors (14876057).

70420903 is a wasteful number, since it uses less digits than its factorization.

70420903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8538.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 70420903 is about 8391.7163321933. The cubic root of 70420903 is about 412.9529090916.

The spelling of 70420903 in words is "seventy million, four hundred twenty thousand, nine hundred three".