47902819 has 8 divisors (see below), whose sum is σ = 51116240. Its totient is φ = 44758656.

The previous prime is 47902783. The next prime is 47902837. The reversal of 47902819 is 91820974.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47902819 - 2⁷ = 47902691 is a prime.

It is a super-2 number, since 2×47902819² = 4589360136293522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47902849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15882 + ... + 18655.

It is an arithmetic number, because the mean of its divisors is an integer number (6389530).

Almost surely, 2^47902819 is an apocalyptic number.

47902819 is a deficient number, since it is larger than the sum of its proper divisors (3213421).

47902819 is a wasteful number, since it uses less digits than its factorization.

47902819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34629.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 47902819 is about 6921.1862422565. The cubic root of 47902819 is about 363.1786895314.

The spelling of 47902819 in words is "forty-seven million, nine hundred two thousand, eight hundred nineteen".