40779097 has 2 divisors, whose sum is σ = 40779098. Its totient is φ = 40779096.

The previous prime is 40779083. The next prime is 40779131. The reversal of 40779097 is 79097704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26255376 + 14523721 = 5124^2 + 3811^2 .

It is a cyclic number.

It is not a de Polignac number, because 40779097 - 2²³ = 32390489 is a prime.

It is not a weakly prime, because it can be changed into another prime (40779047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20389548 + 20389549.

It is an arithmetic number, because the mean of its divisors is an integer number (20389549).

Almost surely, 2^40779097 is an apocalyptic number.

It is an amenable number.

40779097 is a deficient number, since it is larger than the sum of its proper divisors (1).

40779097 is an equidigital number, since it uses as much as digits as its factorization.

40779097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 111132, while the sum is 43.

The square root of 40779097 is about 6385.8513136464. The cubic root of 40779097 is about 344.2013226858.

The spelling of 40779097 in words is "forty million, seven hundred seventy-nine thousand, ninety-seven".