920279743 has 2 divisors, whose sum is σ = 920279744. Its totient is φ = 920279742.

The previous prime is 920279729. The next prime is 920279747. The reversal of 920279743 is 347972029.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-920279743 is a prime.

It is a super-2 number, since 2×920279743² = 1693829610752292098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 920279743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920279747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460139871 + 460139872.

It is an arithmetic number, because the mean of its divisors is an integer number (460139872).

Almost surely, 2^920279743 is an apocalyptic number.

920279743 is a deficient number, since it is larger than the sum of its proper divisors (1).

920279743 is an equidigital number, since it uses as much as digits as its factorization.

920279743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 920279743 is about 30336.1128525063. The cubic root of 920279743 is about 972.6873940972.

The spelling of 920279743 in words is "nine hundred twenty million, two hundred seventy-nine thousand, seven hundred forty-three".