47390777 has 4 divisors (see below), whose sum is σ = 54160896. Its totient is φ = 40620660.

The previous prime is 47390771. The next prime is 47390801. The reversal of 47390777 is 77709374.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47390777 - 2¹² = 47386681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47390771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3385049 + ... + 3385062.

It is an arithmetic number, because the mean of its divisors is an integer number (13540224).

Almost surely, 2^47390777 is an apocalyptic number.

It is an amenable number.

47390777 is a deficient number, since it is larger than the sum of its proper divisors (6770119).

47390777 is an equidigital number, since it uses as much as digits as its factorization.

47390777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6770118.

The product of its (nonzero) digits is 259308, while the sum is 44.

The square root of 47390777 is about 6884.0959464551. The cubic root of 47390777 is about 361.8800234258.

The spelling of 47390777 in words is "forty-seven million, three hundred ninety thousand, seven hundred seventy-seven".