40098977 has 2 divisors, whose sum is σ = 40098978. Its totient is φ = 40098976.

The previous prime is 40098953. The next prime is 40098991. The reversal of 40098977 is 77989004.

40098977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20394256 + 19704721 = 4516^2 + 4439^2 .

It is a cyclic number.

It is not a de Polignac number, because 40098977 - 2¹⁴ = 40082593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40098907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20049488 + 20049489.

It is an arithmetic number, because the mean of its divisors is an integer number (20049489).

Almost surely, 2^40098977 is an apocalyptic number.

It is an amenable number.

40098977 is a deficient number, since it is larger than the sum of its proper divisors (1).

40098977 is an equidigital number, since it uses as much as digits as its factorization.

40098977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 40098977 is about 6332.3753047336. The cubic root of 40098977 is about 342.2770374744.

The spelling of 40098977 in words is "forty million, ninety-eight thousand, nine hundred seventy-seven".