670401023 has 8 divisors (see below), whose sum is σ = 675668736. Its totient is φ = 665152000.

The previous prime is 670401019. The next prime is 670401029. The reversal of 670401023 is 320104076.

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 670401023 - 2² = 670401019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 670401023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670401029) 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, 72215 + ... + 80967.

It is an arithmetic number, because the mean of its divisors is an integer number (84458592).

Almost surely, 2^670401023 is an apocalyptic number.

670401023 is a deficient number, since it is larger than the sum of its proper divisors (5267713).

670401023 is a wasteful number, since it uses less digits than its factorization.

670401023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9345.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 670401023 is about 25892.1034873569. The cubic root of 670401023 is about 875.2085589384.

Adding to 670401023 its reverse (320104076), we get a palindrome (990505099).

The spelling of 670401023 in words is "six hundred seventy million, four hundred one thousand, twenty-three".