670880354 has 4 divisors (see below), whose sum is σ = 1006320534. Its totient is φ = 335440176.

The previous prime is 670880347. The next prime is 670880359. The reversal of 670880354 is 453088076.

It is a happy number.

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., 349503025 + 321377329 = 18695^2 + 17927^2 .

It is not an unprimeable number, because it can be changed into a prime (670880359) 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, 167720087 + ... + 167720090.

Almost surely, 2^670880354 is an apocalyptic number.

670880354 is a deficient number, since it is larger than the sum of its proper divisors (335440180).

670880354 is a wasteful number, since it uses less digits than its factorization.

670880354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335440179.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 670880354 is about 25901.3581497187. The cubic root of 670880354 is about 875.4170981242.

The spelling of 670880354 in words is "six hundred seventy million, eight hundred eighty thousand, three hundred fifty-four".