647374 has 16 divisors (see below), whose sum is σ = 1195488. Its totient is φ = 256032.

The previous prime is 647371. The next prime is 647399. The reversal of 647374 is 473746.

647374 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1597 + ... + 1960.

It is an arithmetic number, because the mean of its divisors is an integer number (74718).

2⁶⁴⁷³⁷⁴ is an apocalyptic number.

647374 is a deficient number, since it is larger than the sum of its proper divisors (548114).

647374 is a wasteful number, since it uses less digits than its factorization.

647374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3579.

The product of its digits is 14112, while the sum is 31.

The square root of 647374 is about 804.5955505718. The cubic root of 647374 is about 86.5070995543.

The spelling of 647374 in words is "six hundred forty-seven thousand, three hundred seventy-four".