48787621 has 2 divisors, whose sum is σ = 48787622. Its totient is φ = 48787620.

The previous prime is 48787619. The next prime is 48787639. The reversal of 48787621 is 12678784.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32092225 + 16695396 = 5665^2 + 4086^2 .

It is a cyclic number.

It is not a de Polignac number, because 48787621 - 2¹ = 48787619 is a prime.

Together with 48787619, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48787601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24393810 + 24393811.

It is an arithmetic number, because the mean of its divisors is an integer number (24393811).

Almost surely, 2^48787621 is an apocalyptic number.

It is an amenable number.

48787621 is a deficient number, since it is larger than the sum of its proper divisors (1).

48787621 is an equidigital number, since it uses as much as digits as its factorization.

48787621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 43.

The square root of 48787621 is about 6984.8135980855. The cubic root of 48787621 is about 365.4011252851.

The spelling of 48787621 in words is "forty-eight million, seven hundred eighty-seven thousand, six hundred twenty-one".