48694781 has 4 divisors (see below), whose sum is σ = 48727200. Its totient is φ = 48662364.

The previous prime is 48694727. The next prime is 48694787. The reversal of 48694781 is 18749684.

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 48694781 - 2⁶ = 48694717 is a prime.

It is a super-2 number, since 2×48694781² = 4742363393275922, 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 (48694787) 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, 13841 + ... + 16998.

It is an arithmetic number, because the mean of its divisors is an integer number (12181800).

Almost surely, 2^48694781 is an apocalyptic number.

It is an amenable number.

48694781 is a deficient number, since it is larger than the sum of its proper divisors (32419).

48694781 is a wasteful number, since it uses less digits than its factorization.

48694781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32418.

The product of its digits is 387072, while the sum is 47.

The square root of 48694781 is about 6978.1645867664. The cubic root of 48694781 is about 365.1691990921.

The spelling of 48694781 in words is "forty-eight million, six hundred ninety-four thousand, seven hundred eighty-one".