47448999 has 24 divisors (see below), whose sum is σ = 74106032. Its totient is φ = 29082240.

The previous prime is 47448979. The next prime is 47449001. The reversal of 47448999 is 99984474.

It is a happy number.

47448999 is a `hidden beast` number, since 4 + 74 + 489 + 99 = 666.

It is not a de Polignac number, because 47448999 - 2¹⁵ = 47416231 is a prime.

It is a super-2 number, since 2×47448999² = 4502815012204002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47448949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35259 + ... + 36579.

Almost surely, 2^47448999 is an apocalyptic number.

47448999 is a deficient number, since it is larger than the sum of its proper divisors (26657033).

47448999 is a wasteful number, since it uses less digits than its factorization.

47448999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647 (or 1644 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 47448999 is about 6888.3233809106. The cubic root of 47448999 is about 362.0281588344.

The spelling of 47448999 in words is "forty-seven million, four hundred forty-eight thousand, nine hundred ninety-nine".