70489590 has 16 divisors (see below), whose sum is σ = 169175088. Its totient is φ = 18797216.

The previous prime is 70489579. The next prime is 70489597. The reversal of 70489590 is 9598407.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70489597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1174797 + ... + 1174856.

It is an arithmetic number, because the mean of its divisors is an integer number (10573443).

Almost surely, 2^70489590 is an apocalyptic number.

70489590 is an abundant number, since it is smaller than the sum of its proper divisors (98685498).

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

70489590 is a wasteful number, since it uses less digits than its factorization.

70489590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349663.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 70489590 is about 8395.8078825090. The cubic root of 70489590 is about 413.0871271917.

The spelling of 70489590 in words is "seventy million, four hundred eighty-nine thousand, five hundred ninety".