423250661 has 4 divisors (see below), whose sum is σ = 423369024. Its totient is φ = 423132300.

The previous prime is 423250613. The next prime is 423250699. The reversal of 423250661 is 166052324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423250661 is a prime.

It is a super-2 number, since 2×423250661² = 358282244073873842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423250561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53645 + ... + 61026.

It is an arithmetic number, because the mean of its divisors is an integer number (105842256).

Almost surely, 2^423250661 is an apocalyptic number.

It is an amenable number.

423250661 is a deficient number, since it is larger than the sum of its proper divisors (118363).

423250661 is a wasteful number, since it uses less digits than its factorization.

423250661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118362.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 423250661 is about 20573.0566761481. The cubic root of 423250661 is about 750.8143220380.

The spelling of 423250661 in words is "four hundred twenty-three million, two hundred fifty thousand, six hundred sixty-one".