47146636 has 6 divisors (see below), whose sum is σ = 82506620. Its totient is φ = 23573316.

The previous prime is 47146633. The next prime is 47146639. The reversal of 47146636 is 63664174.

It is an interprime number because it is at equal distance from previous prime (47146633) and next prime (47146639).

It is a super-2 number, since 2×47146636² = 4445610572232992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47146595 and 47146604.

It is not an unprimeable number, because it can be changed into a prime (47146633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5893326 + ... + 5893333.

Almost surely, 2^47146636 is an apocalyptic number.

It is an amenable number.

47146636 is a deficient number, since it is larger than the sum of its proper divisors (35359984).

47146636 is a wasteful number, since it uses less digits than its factorization.

47146636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11786663 (or 11786661 counting only the distinct ones).

The product of its digits is 72576, while the sum is 37.

The square root of 47146636 is about 6866.3408013293. The cubic root of 47146636 is about 361.2575260542.

The spelling of 47146636 in words is "forty-seven million, one hundred forty-six thousand, six hundred thirty-six".