245947479 has 16 divisors (see below), whose sum is σ = 340671744. Its totient is φ = 157707200.

The previous prime is 245947451. The next prime is 245947501. The reversal of 245947479 is 974749542.

It is a cyclic number.

It is not a de Polignac number, because 245947479 - 2⁵ = 245947447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245947409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5349 + ... + 22814.

It is an arithmetic number, because the mean of its divisors is an integer number (21291984).

Almost surely, 2^245947479 is an apocalyptic number.

245947479 is a deficient number, since it is larger than the sum of its proper divisors (94724265).

245947479 is a wasteful number, since it uses less digits than its factorization.

245947479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28278.

The product of its digits is 2540160, while the sum is 51.

The square root of 245947479 is about 15682.7127436550. The cubic root of 245947479 is about 626.5380606330.

The spelling of 245947479 in words is "two hundred forty-five million, nine hundred forty-seven thousand, four hundred seventy-nine".