420764007 has 8 divisors (see below), whose sum is σ = 561113584. Its totient is φ = 280461888.

The previous prime is 420763999. The next prime is 420764021. The reversal of 420764007 is 700467024.

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

It is not a de Polignac number, because 420764007 - 2³ = 420763999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420764107) 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, 27243 + ... + 39795.

It is an arithmetic number, because the mean of its divisors is an integer number (70139198).

Almost surely, 2^420764007 is an apocalyptic number.

420764007 is a deficient number, since it is larger than the sum of its proper divisors (140349577).

420764007 is a wasteful number, since it uses less digits than its factorization.

420764007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23729.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 420764007 is about 20512.5329250193. The cubic root of 420764007 is about 749.3410550027.

The spelling of 420764007 in words is "four hundred twenty million, seven hundred sixty-four thousand, seven".