240865847 has 4 divisors (see below), whose sum is σ = 241899840. Its totient is φ = 239831856.

The previous prime is 240865837. The next prime is 240865861. The reversal of 240865847 is 748568042.

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

It is a cyclic number.

It is not a de Polignac number, because 240865847 - 2⁶ = 240865783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240865798 and 240865807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240865837) 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, 516647 + ... + 517112.

It is an arithmetic number, because the mean of its divisors is an integer number (60474960).

Almost surely, 2^240865847 is an apocalyptic number.

240865847 is a deficient number, since it is larger than the sum of its proper divisors (1033993).

240865847 is a wasteful number, since it uses less digits than its factorization.

240865847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033992.

The product of its (nonzero) digits is 430080, while the sum is 44.

The square root of 240865847 is about 15519.8533176058. The cubic root of 240865847 is about 622.1929342590.

The spelling of 240865847 in words is "two hundred forty million, eight hundred sixty-five thousand, eight hundred forty-seven".