40647463 has 4 divisors (see below), whose sum is σ = 42414768. Its totient is φ = 38880160.

The previous prime is 40647443. The next prime is 40647469. The reversal of 40647463 is 36474604.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40647463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40647469) 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, 883618 + ... + 883663.

It is an arithmetic number, because the mean of its divisors is an integer number (10603692).

Almost surely, 2^40647463 is an apocalyptic number.

40647463 is a deficient number, since it is larger than the sum of its proper divisors (1767305).

40647463 is a wasteful number, since it uses less digits than its factorization.

40647463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767304.

The product of its (nonzero) digits is 48384, while the sum is 34.

The square root of 40647463 is about 6375.5362911680. The cubic root of 40647463 is about 343.8305654468.

The spelling of 40647463 in words is "forty million, six hundred forty-seven thousand, four hundred sixty-three".