47423023 has 4 divisors (see below), whose sum is σ = 48525928. Its totient is φ = 46320120.

The previous prime is 47423003. The next prime is 47423029. The reversal of 47423023 is 32032474.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47423023 is a prime.

It is a super-2 number, since 2×47423023² = 4497886220917058, 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 (47423029) 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, 551388 + ... + 551473.

It is an arithmetic number, because the mean of its divisors is an integer number (12131482).

Almost surely, 2^47423023 is an apocalyptic number.

47423023 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

47423023 is a deficient number, since it is larger than the sum of its proper divisors (1102905).

47423023 is a wasteful number, since it uses less digits than its factorization.

47423023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102904.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 47423023 is about 6886.4376131640. The cubic root of 47423023 is about 361.9620825541.

Adding to 47423023 its reverse (32032474), we get a palindrome (79455497).

The spelling of 47423023 in words is "forty-seven million, four hundred twenty-three thousand, twenty-three".