48642791 has 4 divisors (see below), whose sum is σ = 49677792. Its totient is φ = 47607792.

The previous prime is 48642733. The next prime is 48642799. The reversal of 48642791 is 19724684.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 48642791 - 2¹⁴ = 48626407 is a prime.

It is a super-2 number, since 2×48642791² = 4732242232539362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48642799) 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, 517430 + ... + 517523.

It is an arithmetic number, because the mean of its divisors is an integer number (12419448).

Almost surely, 2^48642791 is an apocalyptic number.

48642791 is a deficient number, since it is larger than the sum of its proper divisors (1035001).

48642791 is a wasteful number, since it uses less digits than its factorization.

48642791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035000.

The product of its digits is 96768, while the sum is 41.

The square root of 48642791 is about 6974.4384003302. The cubic root of 48642791 is about 365.0391926389.

The spelling of 48642791 in words is "forty-eight million, six hundred forty-two thousand, seven hundred ninety-one".