40077953 has 2 divisors, whose sum is σ = 40077954. Its totient is φ = 40077952.

The previous prime is 40077943. The next prime is 40077991. The reversal of 40077953 is 35977004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38850289 + 1227664 = 6233^2 + 1108^2 .

It is a cyclic number.

It is not a de Polignac number, because 40077953 - 2⁶ = 40077889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40077943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20038976 + 20038977.

It is an arithmetic number, because the mean of its divisors is an integer number (20038977).

Almost surely, 2^40077953 is an apocalyptic number.

It is an amenable number.

40077953 is a deficient number, since it is larger than the sum of its proper divisors (1).

40077953 is an equidigital number, since it uses as much as digits as its factorization.

40077953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 40077953 is about 6330.7150465015. The cubic root of 40077953 is about 342.2172080975.

The spelling of 40077953 in words is "forty million, seventy-seven thousand, nine hundred fifty-three".