47149394 has 8 divisors (see below), whose sum is σ = 70783308. Its totient is φ = 23554960.

The previous prime is 47149391. The next prime is 47149397. The reversal of 47149394 is 49394174.

It is an interprime number because it is at equal distance from previous prime (47149391) and next prime (47149397).

It can be written as a sum of positive squares in 2 ways, for example, as 45225625 + 1923769 = 6725^2 + 1387^2 .

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

It is not an unprimeable number, because it can be changed into a prime (47149391) 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, 6677 + ... + 11784.

Almost surely, 2^47149394 is an apocalyptic number.

47149394 is a deficient number, since it is larger than the sum of its proper divisors (23633914).

47149394 is a wasteful number, since it uses less digits than its factorization.

47149394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19740.

The product of its digits is 108864, while the sum is 41.

The square root of 47149394 is about 6866.5416331659. The cubic root of 47149394 is about 361.2645702388.

The spelling of 47149394 in words is "forty-seven million, one hundred forty-nine thousand, three hundred ninety-four".