47656434 has 64 divisors (see below), whose sum is σ = 112803840. Its totient is φ = 13141440.

The previous prime is 47656429. The next prime is 47656439. The reversal of 47656434 is 43465674.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (47656429) and next prime (47656439).

It is a super-2 number, since 2×47656434² = 4542271403192712, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 47656392 and 47656401.

It is not an unprimeable number, because it can be changed into a prime (47656439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175719 + ... + 175989.

It is an arithmetic number, because the mean of its divisors is an integer number (1762560).

Almost surely, 2^47656434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47656434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56401920).

47656434 is an abundant number, since it is smaller than the sum of its proper divisors (65147406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47656434 is a wasteful number, since it uses less digits than its factorization.

47656434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415.

The product of its digits is 241920, while the sum is 39.

The square root of 47656434 is about 6903.3639625910. The cubic root of 47656434 is about 362.5549570265.

The spelling of 47656434 in words is "forty-seven million, six hundred fifty-six thousand, four hundred thirty-four".