70470990 has 24 divisors (see below), whose sum is σ = 183224808. Its totient is φ = 18792240.

The previous prime is 70470989. The next prime is 70470991. The reversal of 70470990 is 9907407.

It is an interprime number because it is at equal distance from previous prime (70470989) and next prime (70470991).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70470991) 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 11 ways as a sum of consecutive naturals, for example, 391416 + ... + 391595.

It is an arithmetic number, because the mean of its divisors is an integer number (7634367).

Almost surely, 2^70470990 is an apocalyptic number.

70470990 is an abundant number, since it is smaller than the sum of its proper divisors (112753818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70470990 is a wasteful number, since it uses less digits than its factorization.

70470990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783024 (or 783021 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 70470990 is about 8394.7001137623. The cubic root of 70470990 is about 413.0507904009.

The spelling of 70470990 in words is "seventy million, four hundred seventy thousand, nine hundred ninety".