670671455 has 4 divisors (see below), whose sum is σ = 804805752. Its totient is φ = 536537160.

The previous prime is 670671431. The next prime is 670671503. The reversal of 670671455 is 554176076.

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

It is not a de Polignac number, because 670671455 - 2¹² = 670667359 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 67067141 + ... + 67067150.

It is an arithmetic number, because the mean of its divisors is an integer number (201201438).

Almost surely, 2^670671455 is an apocalyptic number.

670671455 is a deficient number, since it is larger than the sum of its proper divisors (134134297).

670671455 is a wasteful number, since it uses less digits than its factorization.

670671455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134134296.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 670671455 is about 25897.3252479865. The cubic root of 670671455 is about 875.3262261132.

The spelling of 670671455 in words is "six hundred seventy million, six hundred seventy-one thousand, four hundred fifty-five".