946771897 has 4 divisors (see below), whose sum is σ = 947465856. Its totient is φ = 946077940.

The previous prime is 946771849. The next prime is 946771907. The reversal of 946771897 is 798177649.

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, and also an emirpimes, since its reverse is a distinct semiprime: 798177649 = 101 ⋅7902749.

It is a cyclic number.

It is not a de Polignac number, because 946771897 - 2¹⁹ = 946247609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (946771097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344929 + ... + 347662.

It is an arithmetic number, because the mean of its divisors is an integer number (236866464).

Almost surely, 2^946771897 is an apocalyptic number.

It is an amenable number.

946771897 is a deficient number, since it is larger than the sum of its proper divisors (693959).

946771897 is a wasteful number, since it uses less digits than its factorization.

946771897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693958.

The product of its digits is 5334336, while the sum is 58.

The square root of 946771897 is about 30769.6587078895. The cubic root of 946771897 is about 981.9328426661.

The spelling of 946771897 in words is "nine hundred forty-six million, seven hundred seventy-one thousand, eight hundred ninety-seven".