47149389 has 48 divisors (see below), whose sum is σ = 81544320. Its totient is φ = 25683840.

The previous prime is 47149387. The next prime is 47149391. The reversal of 47149389 is 98394174.

It is an interprime number because it is at equal distance from previous prime (47149387) and next prime (47149391).

It is not a de Polignac number, because 47149389 - 2¹ = 47149387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47149387) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 239239 + ... + 239435.

It is an arithmetic number, because the mean of its divisors is an integer number (1698840).

Almost surely, 2^47149389 is an apocalyptic number.

It is an amenable number.

47149389 is a deficient number, since it is larger than the sum of its proper divisors (34394931).

47149389 is a wasteful number, since it uses less digits than its factorization.

47149389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 367 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 47149389 is about 6866.5412690815. The cubic root of 47149389 is about 361.2645574686.

The spelling of 47149389 in words is "forty-seven million, one hundred forty-nine thousand, three hundred eighty-nine".