47268919 has 4 divisors (see below), whose sum is σ = 47306880. Its totient is φ = 47230960.

The previous prime is 47268883. The next prime is 47268937. The reversal of 47268919 is 91986274.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91986274 = 2 ⋅45993137.

It is a cyclic number.

It is not a de Polignac number, because 47268919 - 2⁷ = 47268791 is a prime.

It is a super-2 number, since 2×47268919² = 4468701406857122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47268019) 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, 17047 + ... + 19624.

It is an arithmetic number, because the mean of its divisors is an integer number (11826720).

Almost surely, 2^47268919 is an apocalyptic number.

47268919 is a deficient number, since it is larger than the sum of its proper divisors (37961).

47268919 is a wasteful number, since it uses less digits than its factorization.

47268919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37960.

The product of its digits is 217728, while the sum is 46.

The square root of 47268919 is about 6875.2395594626. The cubic root of 47268919 is about 361.5695844909.

The spelling of 47268919 in words is "forty-seven million, two hundred sixty-eight thousand, nine hundred nineteen".