421375097 has 8 divisors (see below), whose sum is σ = 495042240. Its totient is φ = 353601360.

The previous prime is 421375093. The next prime is 421375099. The reversal of 421375097 is 790573124.

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 421375097 - 2² = 421375093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421375097.

It is not an unprimeable number, because it can be changed into a prime (421375093) 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, 1473197 + ... + 1473482.

It is an arithmetic number, because the mean of its divisors is an integer number (61880280).

Almost surely, 2^421375097 is an apocalyptic number.

It is an amenable number.

421375097 is a deficient number, since it is larger than the sum of its proper divisors (73667143).

421375097 is a wasteful number, since it uses less digits than its factorization.

421375097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946703.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 421375097 is about 20527.4230482055. The cubic root of 421375097 is about 749.7036440982.

The spelling of 421375097 in words is "four hundred twenty-one million, three hundred seventy-five thousand, ninety-seven".