40779463 has 2 divisors, whose sum is σ = 40779464. Its totient is φ = 40779462.

The previous prime is 40779433. The next prime is 40779467. The reversal of 40779463 is 36497704.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40779463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40779467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20389731 + 20389732.

It is an arithmetic number, because the mean of its divisors is an integer number (20389732).

Almost surely, 2^40779463 is an apocalyptic number.

40779463 is a deficient number, since it is larger than the sum of its proper divisors (1).

40779463 is an equidigital number, since it uses as much as digits as its factorization.

40779463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 40779463 is about 6385.8799706853. The cubic root of 40779463 is about 344.2023524397.

The spelling of 40779463 in words is "forty million, seven hundred seventy-nine thousand, four hundred sixty-three".