70089481 has 16 divisors (see below), whose sum is σ = 90206208. Its totient is φ = 52851600.

The previous prime is 70089473. The next prime is 70089557. The reversal of 70089481 is 18498007.

It is a cyclic number.

It is not a de Polignac number, because 70089481 - 2³ = 70089473 is a prime.

It is a super-2 number, since 2×70089481² = 9825070693698722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70089481.

It is not an unprimeable number, because it can be changed into a prime (70089401) 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 15 ways as a sum of consecutive naturals, for example, 12295 + ... + 17068.

It is an arithmetic number, because the mean of its divisors is an integer number (5637888).

Almost surely, 2^70089481 is an apocalyptic number.

It is an amenable number.

70089481 is a deficient number, since it is larger than the sum of its proper divisors (20116727).

70089481 is a wasteful number, since it uses less digits than its factorization.

70089481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29412.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 70089481 is about 8371.9460700604. The cubic root of 70089481 is about 412.3040631740.

The spelling of 70089481 in words is "seventy million, eighty-nine thousand, four hundred eighty-one".