47930919 has 8 divisors (see below), whose sum is σ = 66686592. Its totient is φ = 30564600.

The previous prime is 47930917. The next prime is 47930963. The reversal of 47930919 is 91903974.

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

It is not a de Polignac number, because 47930919 - 2¹ = 47930917 is a prime.

It is a super-2 number, since 2×47930919² = 4594745992369122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47930917) 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, 347257 + ... + 347394.

It is an arithmetic number, because the mean of its divisors is an integer number (8335824).

Almost surely, 2^47930919 is an apocalyptic number.

47930919 is a deficient number, since it is larger than the sum of its proper divisors (18755673).

47930919 is a wasteful number, since it uses less digits than its factorization.

47930919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694677.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 47930919 is about 6923.2159434760. The cubic root of 47930919 is about 363.2496897115.

The spelling of 47930919 in words is "forty-seven million, nine hundred thirty thousand, nine hundred nineteen".