187422423 has 32 divisors (see below), whose sum is σ = 269068800. Its totient is φ = 115758720.

The previous prime is 187422419. The next prime is 187422503. The reversal of 187422423 is 324224781.

It is a happy number.

It is not a de Polignac number, because 187422423 - 2² = 187422419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187422413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 536853 + ... + 537201.

It is an arithmetic number, because the mean of its divisors is an integer number (8408400).

Almost surely, 2^187422423 is an apocalyptic number.

187422423 is a deficient number, since it is larger than the sum of its proper divisors (81646377).

187422423 is a wasteful number, since it uses less digits than its factorization.

187422423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599.

The product of its digits is 21504, while the sum is 33.

The square root of 187422423 is about 13690.2309330413. The cubic root of 187422423 is about 572.2781739461.

The spelling of 187422423 in words is "one hundred eighty-seven million, four hundred twenty-two thousand, four hundred twenty-three".