787101401 has 2 divisors, whose sum is σ = 787101402. Its totient is φ = 787101400.

The previous prime is 787101373. The next prime is 787101431. The reversal of 787101401 is 104101787.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 767290000 + 19811401 = 27700^2 + 4451^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-787101401 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (787101431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393550700 + 393550701.

It is an arithmetic number, because the mean of its divisors is an integer number (393550701).

Almost surely, 2^787101401 is an apocalyptic number.

It is an amenable number.

787101401 is a deficient number, since it is larger than the sum of its proper divisors (1).

787101401 is an equidigital number, since it uses as much as digits as its factorization.

787101401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 29.

The square root of 787101401 is about 28055.3274976429. The cubic root of 787101401 is about 923.3015439827.

The spelling of 787101401 in words is "seven hundred eighty-seven million, one hundred one thousand, four hundred one".