1662754073 has 2 divisors, whose sum is σ = 1662754074. Its totient is φ = 1662754072.

The previous prime is 1662754031. The next prime is 1662754081. The reversal of 1662754073 is 3704572661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1406850064 + 255904009 = 37508^2 + 15997^2 .

It is a cyclic number.

It is not a de Polignac number, because 1662754073 - 2⁸ = 1662753817 is a prime.

It is a super-2 number, since 2×1662754073² = 5529502214556178658, 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 1662754073.

It is not a weakly prime, because it can be changed into another prime (1662750073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831377036 + 831377037.

It is an arithmetic number, because the mean of its divisors is an integer number (831377037).

Almost surely, 2^1662754073 is an apocalyptic number.

It is an amenable number.

1662754073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1662754073 is an equidigital number, since it uses as much as digits as its factorization.

1662754073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 1662754073 is about 40776.8815997496. The cubic root of 1662754073 is about 1184.7025959965.

The spelling of 1662754073 in words is "one billion, six hundred sixty-two million, seven hundred fifty-four thousand, seventy-three".