964861 has 2 divisors, whose sum is σ = 964862. Its totient is φ = 964860.

The previous prime is 964829. The next prime is 964871. The reversal of 964861 is 168469.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 962361 + 2500 = 981^2 + 50^2 .

It is a cyclic number.

It is not a de Polignac number, because 964861 - 2⁵ = 964829 is a prime.

It is an Ulam number.

964861 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (964871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482430 + 482431.

It is an arithmetic number, because the mean of its divisors is an integer number (482431).

2⁹⁶⁴⁸⁶¹ is an apocalyptic number.

It is an amenable number.

964861 is a deficient number, since it is larger than the sum of its proper divisors (1).

964861 is an equidigital number, since it uses as much as digits as its factorization.

964861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 34.

The square root of 964861 is about 982.2733835343. The cubic root of 964861 is about 98.8147062965.

The spelling of 964861 in words is "nine hundred sixty-four thousand, eight hundred sixty-one".