675491615 has 4 divisors (see below), whose sum is σ = 810589944. Its totient is φ = 540393288.

The previous prime is 675491603. The next prime is 675491627. The reversal of 675491615 is 516194576.

675491615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (675491603) and next prime (675491627).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-675491615 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67549157 + ... + 67549166.

It is an arithmetic number, because the mean of its divisors is an integer number (202647486).

Almost surely, 2^675491615 is an apocalyptic number.

675491615 is a deficient number, since it is larger than the sum of its proper divisors (135098329).

675491615 is a wasteful number, since it uses less digits than its factorization.

675491615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135098328.

The product of its digits is 226800, while the sum is 44.

The square root of 675491615 is about 25990.2215265665. The cubic root of 675491615 is about 877.4182314102.

The spelling of 675491615 in words is "six hundred seventy-five million, four hundred ninety-one thousand, six hundred fifteen".