1070407721 has 2 divisors, whose sum is σ = 1070407722. Its totient is φ = 1070407720.

The previous prime is 1070407673. The next prime is 1070407733. The reversal of 1070407721 is 1277040701.

1070407721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1007364121 + 63043600 = 31739^2 + 7940^2 .

It is a cyclic number.

It is not a de Polignac number, because 1070407721 - 2¹⁴ = 1070391337 is a prime.

It is a super-2 number, since 2×1070407721² = 2291545378352827682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1070407421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535203860 + 535203861.

It is an arithmetic number, because the mean of its divisors is an integer number (535203861).

Almost surely, 2^1070407721 is an apocalyptic number.

It is an amenable number.

1070407721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1070407721 is an equidigital number, since it uses as much as digits as its factorization.

1070407721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2744, while the sum is 29.

The square root of 1070407721 is about 32717.0860713481. The cubic root of 1070407721 is about 1022.9390182809.

The spelling of 1070407721 in words is "one billion, seventy million, four hundred seven thousand, seven hundred twenty-one".