47429489 has 4 divisors (see below), whose sum is σ = 47465700. Its totient is φ = 47393280.

The previous prime is 47429483. The next prime is 47429539. The reversal of 47429489 is 98492474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98492474 = 2 ⋅49246237.

It can be written as a sum of positive squares in 2 ways, for example, as 4133089 + 43296400 = 2033^2 + 6580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47429489 is a prime.

It is a super-2 number, since 2×47429489² = 4499112853602242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47429483) 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, 16064 + ... + 18785.

It is an arithmetic number, because the mean of its divisors is an integer number (11866425).

Almost surely, 2^47429489 is an apocalyptic number.

It is an amenable number.

47429489 is a deficient number, since it is larger than the sum of its proper divisors (36211).

47429489 is a wasteful number, since it uses less digits than its factorization.

47429489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36210.

The product of its digits is 580608, while the sum is 47.

The square root of 47429489 is about 6886.9070706668. The cubic root of 47429489 is about 361.9785326545.

The spelling of 47429489 in words is "forty-seven million, four hundred twenty-nine thousand, four hundred eighty-nine".