47258609 has 4 divisors (see below), whose sum is σ = 48411300. Its totient is φ = 46105920.

The previous prime is 47258599. The next prime is 47258633. The reversal of 47258609 is 90685274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1763584 + 45495025 = 1328^2 + 6745^2 .

It is a cyclic number.

It is not a de Polignac number, because 47258609 - 2⁴ = 47258593 is a prime.

It is a super-2 number, since 2×47258609² = 4466752249229762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 1152649 = 47258609 / (4 + 7 + 2 + 5 + 8 + 6 + 0 + 9).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47258639) 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, 576284 + ... + 576365.

It is an arithmetic number, because the mean of its divisors is an integer number (12102825).

Almost surely, 2^47258609 is an apocalyptic number.

It is an amenable number.

47258609 is a deficient number, since it is larger than the sum of its proper divisors (1152691).

47258609 is a wasteful number, since it uses less digits than its factorization.

47258609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152690.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 47258609 is about 6874.4897265179. The cubic root of 47258609 is about 361.5432948165.

The spelling of 47258609 in words is "forty-seven million, two hundred fifty-eight thousand, six hundred nine".