70840539 has 36 divisors (see below), whose sum is σ = 128554608. Its totient is φ = 36796320.

The previous prime is 70840501. The next prime is 70840541. The reversal of 70840539 is 93504807.

It is not a de Polignac number, because 70840539 - 2¹¹ = 70838491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70840589) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2977 + ... + 12269.

Almost surely, 2^70840539 is an apocalyptic number.

70840539 is a deficient number, since it is larger than the sum of its proper divisors (57714069).

70840539 is a wasteful number, since it uses less digits than its factorization.

70840539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9328 (or 9314 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 70840539 is about 8416.6821848042. The cubic root of 70840539 is about 413.7715430713.

The spelling of 70840539 in words is "seventy million, eight hundred forty thousand, five hundred thirty-nine".