673940475 has 72 divisors (see below), whose sum is σ = 1312103520. Its totient is φ = 328688640.

The previous prime is 673940461. The next prime is 673940497. The reversal of 673940475 is 574049376.

It is not a de Polignac number, because 673940475 - 2⁸ = 673940219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 673940475.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 329506 + ... + 331544.

It is an arithmetic number, because the mean of its divisors is an integer number (18223660).

Almost surely, 2^673940475 is an apocalyptic number.

673940475 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

673940475 is a deficient number, since it is larger than the sum of its proper divisors (638163045).

673940475 is a wasteful number, since it uses less digits than its factorization.

673940475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181 (or 2173 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The square root of 673940475 is about 25960.3635375162. The cubic root of 673940475 is about 876.7461077915.

The spelling of 673940475 in words is "six hundred seventy-three million, nine hundred forty thousand, four hundred seventy-five".