47739787 has 2 divisors, whose sum is σ = 47739788. Its totient is φ = 47739786.

The previous prime is 47739781. The next prime is 47739793. The reversal of 47739787 is 78793774.

It is a balanced prime because it is at equal distance from previous prime (47739781) and next prime (47739793).

It is a cyclic number.

It is not a de Polignac number, because 47739787 - 2¹⁹ = 47215499 is a prime.

It is not a weakly prime, because it can be changed into another prime (47739781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23869893 + 23869894.

It is an arithmetic number, because the mean of its divisors is an integer number (23869894).

Almost surely, 2^47739787 is an apocalyptic number.

47739787 is a deficient number, since it is larger than the sum of its proper divisors (1).

47739787 is an equidigital number, since it uses as much as digits as its factorization.

47739787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2074464, while the sum is 52.

The square root of 47739787 is about 6909.3984542795. The cubic root of 47739787 is about 362.7662082624.

The spelling of 47739787 in words is "forty-seven million, seven hundred thirty-nine thousand, seven hundred eighty-seven".