47423719 has 6 divisors (see below), whose sum is σ = 55166424. Its totient is φ = 40648860.

The previous prime is 47423699. The next prime is 47423737. The reversal of 47423719 is 91732474.

It is not a de Polignac number, because 47423719 - 2¹⁹ = 46899431 is a prime.

It is a super-2 number, since 2×47423719² = 4498018247581922, 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 (47423759) 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, 483867 + ... + 483964.

It is an arithmetic number, because the mean of its divisors is an integer number (9194404).

Almost surely, 2^47423719 is an apocalyptic number.

47423719 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

47423719 is a deficient number, since it is larger than the sum of its proper divisors (7742705).

47423719 is an equidigital number, since it uses as much as digits as its factorization.

47423719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967845 (or 967838 counting only the distinct ones).

The product of its digits is 42336, while the sum is 37.

The square root of 47423719 is about 6886.4881470892. The cubic root of 47423719 is about 361.9638533141.

The spelling of 47423719 in words is "forty-seven million, four hundred twenty-three thousand, seven hundred nineteen".