40783471 has 2 divisors, whose sum is σ = 40783472. Its totient is φ = 40783470.

The previous prime is 40783469. The next prime is 40783487. The reversal of 40783471 is 17438704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40783471 - 2¹ = 40783469 is a prime.

It is a super-3 number, since 3×40783471³ (a number of 24 digits) contains 333 as substring.

Together with 40783469, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40783411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20391735 + 20391736.

It is an arithmetic number, because the mean of its divisors is an integer number (20391736).

Almost surely, 2^40783471 is an apocalyptic number.

40783471 is a deficient number, since it is larger than the sum of its proper divisors (1).

40783471 is an equidigital number, since it uses as much as digits as its factorization.

40783471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 40783471 is about 6386.1937803358. The cubic root of 40783471 is about 344.2136286862.

The spelling of 40783471 in words is "forty million, seven hundred eighty-three thousand, four hundred seventy-one".