940977497 has 2 divisors, whose sum is σ = 940977498. Its totient is φ = 940977496.

The previous prime is 940977493. The next prime is 940977517. The reversal of 940977497 is 794779049.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 929274256 + 11703241 = 30484^2 + 3421^2 .

It is an emirp because it is prime and its reverse (794779049) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 940977497 - 2² = 940977493 is a prime.

It is not a weakly prime, because it can be changed into another prime (940977493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470488748 + 470488749.

It is an arithmetic number, because the mean of its divisors is an integer number (470488749).

Almost surely, 2^940977497 is an apocalyptic number.

It is an amenable number.

940977497 is a deficient number, since it is larger than the sum of its proper divisors (1).

940977497 is an equidigital number, since it uses as much as digits as its factorization.

940977497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4000752, while the sum is 56.

The square root of 940977497 is about 30675.3565097457. The cubic root of 940977497 is about 979.9255451556.

The spelling of 940977497 in words is "nine hundred forty million, nine hundred seventy-seven thousand, four hundred ninety-seven".