946747649 has 4 divisors (see below), whose sum is σ = 966891264. Its totient is φ = 926604036.

The previous prime is 946747603. The next prime is 946747661.

946747649 is nontrivially palindromic in base 10.

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 946747649 - 2⁸ = 946747393 is a prime.

It is a super-2 number, since 2×946747649² = 1792662221774054402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 946747594 and 946747603.

It is not an unprimeable number, because it can be changed into a prime (946747049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10071737 + ... + 10071830.

It is an arithmetic number, because the mean of its divisors is an integer number (241722816).

Almost surely, 2^946747649 is an apocalyptic number.

It is an amenable number.

946747649 is a deficient number, since it is larger than the sum of its proper divisors (20143615).

946747649 is a wasteful number, since it uses less digits than its factorization.

946747649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20143614.

The product of its digits is 9144576, while the sum is 56.

The square root of 946747649 is about 30769.2646808467. The cubic root of 946747649 is about 981.9244597561.

The spelling of 946747649 in words is "nine hundred forty-six million, seven hundred forty-seven thousand, six hundred forty-nine".