966215401 has 4 divisors (see below), whose sum is σ = 969975252. Its totient is φ = 962455552.

The previous prime is 966215377. The next prime is 966215413. The reversal of 966215401 is 104512669.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104512669 = 8807 ⋅11867.

It can be written as a sum of positive squares in 2 ways, for example, as 947162176 + 19053225 = 30776^2 + 4365^2 .

It is a cyclic number.

It is not a de Polignac number, because 966215401 - 2¹⁹ = 965691113 is a prime.

It is a super-2 number, since 2×966215401² = 1867144402259181602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (966215431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1879540 + ... + 1880053.

It is an arithmetic number, because the mean of its divisors is an integer number (242493813).

Almost surely, 2^966215401 is an apocalyptic number.

It is an amenable number.

966215401 is a deficient number, since it is larger than the sum of its proper divisors (3759851).

966215401 is a wasteful number, since it uses less digits than its factorization.

966215401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3759850.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 966215401 is about 31084.0055494783. The cubic root of 966215401 is about 988.6092095449.

The spelling of 966215401 in words is "nine hundred sixty-six million, two hundred fifteen thousand, four hundred one".