670505735 has 8 divisors (see below), whose sum is σ = 806004816. Its totient is φ = 535472640.

The previous prime is 670505701. The next prime is 670505747. The reversal of 670505735 is 537505076.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 670505735 - 2²² = 666311431 is a prime.

It is a super-3 number, since 3×670505735³ (a number of 27 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 113321 + ... + 119090.

It is an arithmetic number, because the mean of its divisors is an integer number (100750602).

Almost surely, 2^670505735 is an apocalyptic number.

670505735 is a deficient number, since it is larger than the sum of its proper divisors (135499081).

670505735 is a wasteful number, since it uses less digits than its factorization.

670505735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232993.

The product of its (nonzero) digits is 110250, while the sum is 38.

The square root of 670505735 is about 25894.1254920880. The cubic root of 670505735 is about 875.2541237394.

The spelling of 670505735 in words is "six hundred seventy million, five hundred five thousand, seven hundred thirty-five".