786746401 has 9 divisors (see below), whose sum is σ = 915423249. Its totient is φ = 674185764.

The previous prime is 786746399. The next prime is 786746437. The reversal of 786746401 is 104647687.

The square root of 786746401 is 28049.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 786746401 - 2¹ = 786746399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (786746461) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 194340 + ... + 198346.

Almost surely, 2^786746401 is an apocalyptic number.

786746401 is the 28049-th square number.

786746401 is the 14025-th centered octagonal number.

It is an amenable number.

786746401 is a deficient number, since it is larger than the sum of its proper divisors (128676848).

786746401 is an frugal number, since it uses more digits than its factorization.

786746401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8028 (or 4014 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The cubic root of 786746401 is about 923.1627133578.

The spelling of 786746401 in words is "seven hundred eighty-six million, seven hundred forty-six thousand, four hundred one".