48428661 has 4 divisors (see below), whose sum is σ = 64571552. Its totient is φ = 32285772.

The previous prime is 48428657. The next prime is 48428669. The reversal of 48428661 is 16682484.

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 not a de Polignac number, because 48428661 - 2² = 48428657 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48428669) 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, 8071441 + ... + 8071446.

It is an arithmetic number, because the mean of its divisors is an integer number (16142888).

Almost surely, 2^48428661 is an apocalyptic number.

It is an amenable number.

48428661 is a deficient number, since it is larger than the sum of its proper divisors (16142891).

48428661 is a wasteful number, since it uses less digits than its factorization.

48428661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16142890.

The product of its digits is 73728, while the sum is 39.

The square root of 48428661 is about 6959.0704120594. The cubic root of 48428661 is about 364.5027594576.

The spelling of 48428661 in words is "forty-eight million, four hundred twenty-eight thousand, six hundred sixty-one".