40688763 has 4 divisors (see below), whose sum is σ = 54251688. Its totient is φ = 27125840.

The previous prime is 40688761. The next prime is 40688777. The reversal of 40688763 is 36788604.

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 40688763 - 2¹ = 40688761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40688761) 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, 6781458 + ... + 6781463.

It is an arithmetic number, because the mean of its divisors is an integer number (13562922).

Almost surely, 2^40688763 is an apocalyptic number.

40688763 is a deficient number, since it is larger than the sum of its proper divisors (13562925).

40688763 is a wasteful number, since it uses less digits than its factorization.

40688763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13562924.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 40688763 is about 6378.7744120638. The cubic root of 40688763 is about 343.9469761207.

The spelling of 40688763 in words is "forty million, six hundred eighty-eight thousand, seven hundred sixty-three".