421602969 has 16 divisors (see below), whose sum is σ = 575294400. Its totient is φ = 274537536.

The previous prime is 421602947. The next prime is 421602971. The reversal of 421602969 is 969206124.

It is not a de Polignac number, because 421602969 - 2¹⁹ = 421078681 is a prime.

It is a super-2 number, since 2×421602969² = 355498126939229922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (421602919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30622 + ... + 42200.

It is an arithmetic number, because the mean of its divisors is an integer number (35955900).

Almost surely, 2^421602969 is an apocalyptic number.

It is an amenable number.

421602969 is a deficient number, since it is larger than the sum of its proper divisors (153691431).

421602969 is a wasteful number, since it uses less digits than its factorization.

421602969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11864.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 421602969 is about 20532.9727268119. The cubic root of 421602969 is about 749.8387617832.

The spelling of 421602969 in words is "four hundred twenty-one million, six hundred two thousand, nine hundred sixty-nine".