49143623 has 6 divisors (see below), whose sum is σ = 50213736. Its totient is φ = 48095852.

The previous prime is 49143599. The next prime is 49143641. The reversal of 49143623 is 32634194.

It is not a de Polignac number, because 49143623 - 2¹² = 49139527 is a prime.

It is a super-2 number, since 2×49143623² = 4830191363132258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49143623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49143643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8915 + ... + 13332.

It is an arithmetic number, because the mean of its divisors is an integer number (8368956).

Almost surely, 2^49143623 is an apocalyptic number.

49143623 is a deficient number, since it is larger than the sum of its proper divisors (1070113).

49143623 is an equidigital number, since it uses as much as digits as its factorization.

49143623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22341 (or 22294 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 49143623 is about 7010.2512793765. The cubic root of 49143623 is about 366.2877463844.

The spelling of 49143623 in words is "forty-nine million, one hundred forty-three thousand, six hundred twenty-three".