607667021 has 8 divisors (see below), whose sum is σ = 672097944. Its totient is φ = 545762880.

The previous prime is 607667009. The next prime is 607667033. The reversal of 607667021 is 120766706.

It is an interprime number because it is at equal distance from previous prime (607667009) and next prime (607667033).

It can be written as a sum of positive squares in 4 ways, for example, as 86229796 + 521437225 = 9286^2 + 22835^2 .

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

It is not a de Polignac number, because 607667021 - 2¹⁰ = 607665997 is a prime.

It is a super-2 number, since 2×607667021² = 738518416822028882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (607667321) 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, 631190 + ... + 632151.

It is an arithmetic number, because the mean of its divisors is an integer number (84012243).

Almost surely, 2^607667021 is an apocalyptic number.

It is an amenable number.

607667021 is a deficient number, since it is larger than the sum of its proper divisors (64430923).

607667021 is a wasteful number, since it uses less digits than its factorization.

607667021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263391.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 607667021 is about 24650.9030463389. The cubic root of 607667021 is about 847.0100350679.

The spelling of 607667021 in words is "six hundred seven million, six hundred sixty-seven thousand, twenty-one".