48780749 has 2 divisors, whose sum is σ = 48780750. Its totient is φ = 48780748.

The previous prime is 48780727. The next prime is 48780751. The reversal of 48780749 is 94708784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41190724 + 7590025 = 6418^2 + 2755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48780749 is a prime.

It is a super-4 number, since 4×48780749⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

Together with 48780751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48780449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24390374 + 24390375.

It is an arithmetic number, because the mean of its divisors is an integer number (24390375).

Almost surely, 2^48780749 is an apocalyptic number.

It is an amenable number.

48780749 is a deficient number, since it is larger than the sum of its proper divisors (1).

48780749 is an equidigital number, since it uses as much as digits as its factorization.

48780749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 48780749 is about 6984.3216563958. The cubic root of 48780749 is about 365.3839682386.

The spelling of 48780749 in words is "forty-eight million, seven hundred eighty thousand, seven hundred forty-nine".