674023615 has 4 divisors (see below), whose sum is σ = 808828344. Its totient is φ = 539218888.

The previous prime is 674023583. The next prime is 674023619. The reversal of 674023615 is 516320476.

It is a happy number.

674023615 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 a cyclic number.

It is not a de Polignac number, because 674023615 - 2⁵ = 674023583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674023619) 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, 67402357 + ... + 67402366.

It is an arithmetic number, because the mean of its divisors is an integer number (202207086).

Almost surely, 2^674023615 is an apocalyptic number.

674023615 is a deficient number, since it is larger than the sum of its proper divisors (134804729).

674023615 is a wasteful number, since it uses less digits than its factorization.

674023615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134804728.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 674023615 is about 25961.9647754171. The cubic root of 674023615 is about 876.7821592812.

It can be divided in two parts, 67402 and 3615, that added together give a palindrome (71017).

The spelling of 674023615 in words is "six hundred seventy-four million, twenty-three thousand, six hundred fifteen".