670776121 has 8 divisors (see below), whose sum is σ = 682392384. Its totient is φ = 659220240.

The previous prime is 670776103. The next prime is 670776143. The reversal of 670776121 is 121677076.

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

It is a cyclic number.

It is not a de Polignac number, because 670776121 - 2⁷ = 670775993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670776181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7606 + ... + 37408.

It is an arithmetic number, because the mean of its divisors is an integer number (85299048).

Almost surely, 2^670776121 is an apocalyptic number.

It is an amenable number.

670776121 is a deficient number, since it is larger than the sum of its proper divisors (11616263).

670776121 is a wasteful number, since it uses less digits than its factorization.

670776121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30191.

The product of its (nonzero) digits is 24696, while the sum is 37.

The square root of 670776121 is about 25899.3459569928. The cubic root of 670776121 is about 875.3717586555.

It can be divided in two parts, 6707 and 76121, that added together give a palindrome (82828).

The spelling of 670776121 in words is "six hundred seventy million, seven hundred seventy-six thousand, one hundred twenty-one".