9947692401 has 4 divisors (see below), whose sum is σ = 13263589872. Its totient is φ = 6631794932.

The previous prime is 9947692357. The next prime is 9947692429. The reversal of 9947692401 is 1042967499.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9947692401 - 2¹⁷ = 9947561329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9947692471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1657948731 + ... + 1657948736.

It is an arithmetic number, because the mean of its divisors is an integer number (3315897468).

Almost surely, 2^9947692401 is an apocalyptic number.

It is an amenable number.

9947692401 is a deficient number, since it is larger than the sum of its proper divisors (3315897471).

9947692401 is a wasteful number, since it uses less digits than its factorization.

9947692401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3315897470.

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 9947692401 is about 99738.1190969631. The cubic root of 9947692401 is about 2150.6716777194.

The spelling of 9947692401 in words is "nine billion, nine hundred forty-seven million, six hundred ninety-two thousand, four hundred one".