947801641 has 8 divisors (see below), whose sum is σ = 990670464. Its totient is φ = 905071200.

The previous prime is 947801623. The next prime is 947801683. The reversal of 947801641 is 146108749.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 947801641 - 2¹⁵ = 947768873 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 947801594 and 947801603.

It is not an unprimeable number, because it can be changed into a prime (947801441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20461 + ... + 48106.

It is an arithmetic number, because the mean of its divisors is an integer number (123833808).

Almost surely, 2^947801641 is an apocalyptic number.

It is an amenable number.

947801641 is a deficient number, since it is larger than the sum of its proper divisors (42868823).

947801641 is a wasteful number, since it uses less digits than its factorization.

947801641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69191.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 947801641 is about 30786.3872677520. The cubic root of 947801641 is about 982.2887091262.

The spelling of 947801641 in words is "nine hundred forty-seven million, eight hundred one thousand, six hundred forty-one".