47420783 has 4 divisors (see below), whose sum is σ = 47460000. Its totient is φ = 47381568.

The previous prime is 47420767. The next prime is 47420797. The reversal of 47420783 is 38702474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38702474 = 2 ⋅19351237.

It is a cyclic number.

It is not a de Polignac number, because 47420783 - 2⁴ = 47420767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47420753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17735 + ... + 20232.

It is an arithmetic number, because the mean of its divisors is an integer number (11865000).

Almost surely, 2^47420783 is an apocalyptic number.

47420783 is a deficient number, since it is larger than the sum of its proper divisors (39217).

47420783 is a wasteful number, since it uses less digits than its factorization.

47420783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39216.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 47420783 is about 6886.2749727265. The cubic root of 47420783 is about 361.9563834388.

The spelling of 47420783 in words is "forty-seven million, four hundred twenty thousand, seven hundred eighty-three".