47450661 has 4 divisors (see below), whose sum is σ = 63267552. Its totient is φ = 31633772.

The previous prime is 47450659. The next prime is 47450701. The reversal of 47450661 is 16605474.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47450661 - 2¹ = 47450659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47450651) 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, 7908441 + ... + 7908446.

It is an arithmetic number, because the mean of its divisors is an integer number (15816888).

Almost surely, 2^47450661 is an apocalyptic number.

It is an amenable number.

47450661 is a deficient number, since it is larger than the sum of its proper divisors (15816891).

47450661 is a wasteful number, since it uses less digits than its factorization.

47450661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15816890.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 47450661 is about 6888.4440187897. Note that the first 3 decimals coincide. The cubic root of 47450661 is about 362.0323857151.

The spelling of 47450661 in words is "forty-seven million, four hundred fifty thousand, six hundred sixty-one".