670681775 has 24 divisors (see below), whose sum is σ = 851880000. Its totient is φ = 523560960.

The previous prime is 670681757. The next prime is 670681783. The reversal of 670681775 is 577186076.

It is not a de Polignac number, because 670681775 - 2²⁰ = 669633199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 536351 + ... + 537599.

It is an arithmetic number, because the mean of its divisors is an integer number (35495000).

Almost surely, 2^670681775 is an apocalyptic number.

670681775 is a deficient number, since it is larger than the sum of its proper divisors (181198225).

670681775 is a wasteful number, since it uses less digits than its factorization.

670681775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763 (or 1758 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 47.

The square root of 670681775 is about 25897.5244955961. The cubic root of 670681775 is about 875.3307158029.

The spelling of 670681775 in words is "six hundred seventy million, six hundred eighty-one thousand, seven hundred seventy-five".