670395550 has 24 divisors (see below), whose sum is σ = 1360294632. Its totient is φ = 243780000.

The previous prime is 670395541. The next prime is 670395599. The reversal of 670395550 is 55593076.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 608901 + ... + 610000.

It is an arithmetic number, because the mean of its divisors is an integer number (56678943).

Almost surely, 2^670395550 is an apocalyptic number.

670395550 is an abundant number, since it is smaller than the sum of its proper divisors (689899082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670395550 is a wasteful number, since it uses less digits than its factorization.

670395550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218924 (or 1218919 counting only the distinct ones).

The product of its (nonzero) digits is 141750, while the sum is 40.

The square root of 670395550 is about 25891.9977985477. The cubic root of 670395550 is about 875.2061772647.

The spelling of 670395550 in words is "six hundred seventy million, three hundred ninety-five thousand, five hundred fifty".