48311639 has 2 divisors, whose sum is σ = 48311640. Its totient is φ = 48311638.

The previous prime is 48311591. The next prime is 48311663. The reversal of 48311639 is 93611384.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 48311639 - 2¹² = 48307543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 48311599 and 48311608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48311839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24155819 + 24155820.

It is an arithmetic number, because the mean of its divisors is an integer number (24155820).

Almost surely, 2^48311639 is an apocalyptic number.

48311639 is a deficient number, since it is larger than the sum of its proper divisors (1).

48311639 is an equidigital number, since it uses as much as digits as its factorization.

48311639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 48311639 is about 6950.6574509179. The cubic root of 48311639 is about 364.2089303903.

The spelling of 48311639 in words is "forty-eight million, three hundred eleven thousand, six hundred thirty-nine".