1067874721 has 2 divisors, whose sum is σ = 1067874722. Its totient is φ = 1067874720.

The previous prime is 1067874707. The next prime is 1067874757. The reversal of 1067874721 is 1274787601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 657204496 + 410670225 = 25636^2 + 20265^2 .

It is a cyclic number.

It is not a de Polignac number, because 1067874721 - 2¹³ = 1067866529 is a prime.

It is a super-2 number, since 2×1067874721² = 2280712839501655682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1067874761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533937360 + 533937361.

It is an arithmetic number, because the mean of its divisors is an integer number (533937361).

Almost surely, 2^1067874721 is an apocalyptic number.

It is an amenable number.

1067874721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1067874721 is an equidigital number, since it uses as much as digits as its factorization.

1067874721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 131712, while the sum is 43.

The square root of 1067874721 is about 32678.3524829512. The cubic root of 1067874721 is about 1022.1314907607.

The spelling of 1067874721 in words is "one billion, sixty-seven million, eight hundred seventy-four thousand, seven hundred twenty-one".