787506061 has 2 divisors, whose sum is σ = 787506062. Its totient is φ = 787506060.

The previous prime is 787506047. The next prime is 787506067. The reversal of 787506061 is 160605787.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 684868900 + 102637161 = 26170^2 + 10131^2 .

It is an emirp because it is prime and its reverse (160605787) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 787506061 - 2⁹ = 787505549 is a prime.

It is a super-2 number, since 2×787506061² = 1240331592223471442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (787506067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393753030 + 393753031.

It is an arithmetic number, because the mean of its divisors is an integer number (393753031).

Almost surely, 2^787506061 is an apocalyptic number.

It is an amenable number.

787506061 is a deficient number, since it is larger than the sum of its proper divisors (1).

787506061 is an equidigital number, since it uses as much as digits as its factorization.

787506061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 787506061 is about 28062.5383919559. The cubic root of 787506061 is about 923.4597443502.

The spelling of 787506061 in words is "seven hundred eighty-seven million, five hundred six thousand, sixty-one".