670710154 has 4 divisors (see below), whose sum is σ = 1006065234. Its totient is φ = 335355076.

The previous prime is 670710151. The next prime is 670710169. The reversal of 670710154 is 451017076.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 577104529 + 93605625 = 24023^2 + 9675^2 .

It is a super-2 number, since 2×670710154² = 899704221357407432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (670710151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167677537 + ... + 167677540.

Almost surely, 2^670710154 is an apocalyptic number.

670710154 is a deficient number, since it is larger than the sum of its proper divisors (335355080).

670710154 is a wasteful number, since it uses less digits than its factorization.

670710154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335355079.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 670710154 is about 25898.0723993119. The cubic root of 670710154 is about 875.3430617773.

It can be divided in two parts, 6707 and 10154, that added together give a palindrome (16861).

The spelling of 670710154 in words is "six hundred seventy million, seven hundred ten thousand, one hundred fifty-four".