70082591 has 4 divisors (see below), whose sum is σ = 70107912. Its totient is φ = 70057272.

The previous prime is 70082581. The next prime is 70082611. The reversal of 70082591 is 19528007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19528007 = 331 ⋅58997.

It is a cyclic number.

It is not a de Polignac number, because 70082591 - 2¹⁸ = 69820447 is a prime.

It is a super-2 number, since 2×70082591² = 9823139122546562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70082521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7916 + ... + 14241.

It is an arithmetic number, because the mean of its divisors is an integer number (17526978).

Almost surely, 2^70082591 is an apocalyptic number.

70082591 is a deficient number, since it is larger than the sum of its proper divisors (25321).

70082591 is a wasteful number, since it uses less digits than its factorization.

70082591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25320.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 70082591 is about 8371.5345666132. The cubic root of 70082591 is about 412.2905525014.

The spelling of 70082591 in words is "seventy million, eighty-two thousand, five hundred ninety-one".