47005929 has 12 divisors (see below), whose sum is σ = 69011332. Its totient is φ = 30823200.

The previous prime is 47005921. The next prime is 47005979. The reversal of 47005929 is 92950074.

It can be written as a sum of positive squares in 2 ways, for example, as 21483225 + 25522704 = 4635^2 + 5052^2 .

It is not a de Polignac number, because 47005929 - 2³ = 47005921 is a prime.

It is a super-2 number, since 2×47005929² = 4419114722306082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47005893 and 47005902.

It is not an unprimeable number, because it can be changed into a prime (47005921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42262 + ... + 43359.

Almost surely, 2^47005929 is an apocalyptic number.

It is an amenable number.

47005929 is a deficient number, since it is larger than the sum of its proper divisors (22005403).

47005929 is a wasteful number, since it uses less digits than its factorization.

47005929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85688 (or 85685 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 47005929 is about 6856.0870035320. The cubic root of 47005929 is about 360.8977823615.

The spelling of 47005929 in words is "forty-seven million, five thousand, nine hundred twenty-nine".