78472563 has 32 divisors (see below), whose sum is σ = 118874112. Its totient is φ = 45705600.

The previous prime is 78472529. The next prime is 78472571. The reversal of 78472563 is 36527487.

It is not a de Polignac number, because 78472563 - 2¹⁶ = 78407027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78472763) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56133 + ... + 57513.

It is an arithmetic number, because the mean of its divisors is an integer number (3714816).

Almost surely, 2^78472563 is an apocalyptic number.

78472563 is a deficient number, since it is larger than the sum of its proper divisors (40401549).

78472563 is a wasteful number, since it uses less digits than its factorization.

78472563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475.

The product of its digits is 282240, while the sum is 42.

The square root of 78472563 is about 8858.4740785307. The cubic root of 78472563 is about 428.1269948794.

The spelling of 78472563 in words is "seventy-eight million, four hundred seventy-two thousand, five hundred sixty-three".