70497609 has 16 divisors (see below), whose sum is σ = 115688832. Its totient is φ = 37185408.

The previous prime is 70497593. The next prime is 70497611. The reversal of 70497609 is 90679407.

It is not a de Polignac number, because 70497609 - 2⁴ = 70497593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70497209) 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, 128844 + ... + 129389.

It is an arithmetic number, because the mean of its divisors is an integer number (7230552).

Almost surely, 2^70497609 is an apocalyptic number.

It is an amenable number.

70497609 is a deficient number, since it is larger than the sum of its proper divisors (45191223).

70497609 is a wasteful number, since it uses less digits than its factorization.

70497609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258256.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 70497609 is about 8396.2854286881. The cubic root of 70497609 is about 413.1027910653.

The spelling of 70497609 in words is "seventy million, four hundred ninety-seven thousand, six hundred nine".