47878793 has 2 divisors, whose sum is σ = 47878794. Its totient is φ = 47878792.

The previous prime is 47878781. The next prime is 47878807. The reversal of 47878793 is 39787874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44448889 + 3429904 = 6667^2 + 1852^2 .

It is a cyclic number.

It is not a de Polignac number, because 47878793 - 2¹⁰ = 47877769 is a prime.

It is not a weakly prime, because it can be changed into another prime (47878723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23939396 + 23939397.

It is an arithmetic number, because the mean of its divisors is an integer number (23939397).

Almost surely, 2^47878793 is an apocalyptic number.

It is an amenable number.

47878793 is a deficient number, since it is larger than the sum of its proper divisors (1).

47878793 is an equidigital number, since it uses as much as digits as its factorization.

47878793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2370816, while the sum is 53.

The square root of 47878793 is about 6919.4503394417. The cubic root of 47878793 is about 363.1179610913.

The spelling of 47878793 in words is "forty-seven million, eight hundred seventy-eight thousand, seven hundred ninety-three".