47420646 has 32 divisors (see below), whose sum is σ = 116729088. Its totient is φ = 12506400.

The previous prime is 47420629. The next prime is 47420647. The reversal of 47420646 is 64602474.

It is a super-3 number, since 3×47420646³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47420647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42880 + ... + 43971.

It is an arithmetic number, because the mean of its divisors is an integer number (3647784).

Almost surely, 2^47420646 is an apocalyptic number.

47420646 is an abundant number, since it is smaller than the sum of its proper divisors (69308442).

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

47420646 is a wasteful number, since it uses less digits than its factorization.

47420646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86876.

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 47420646 is about 6886.2650253966. The cubic root of 47420646 is about 361.9560348710.

The spelling of 47420646 in words is "forty-seven million, four hundred twenty thousand, six hundred forty-six".