415923961 has 4 divisors (see below), whose sum is σ = 416941300. Its totient is φ = 414906624.

The previous prime is 415923953. The next prime is 415923979. The reversal of 415923961 is 169329514.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 318408336 + 97515625 = 17844^2 + 9875^2 .

It is a cyclic number.

It is not a de Polignac number, because 415923961 - 2³ = 415923953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (415923901) 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, 508056 + ... + 508873.

It is an arithmetic number, because the mean of its divisors is an integer number (104235325).

Almost surely, 2^415923961 is an apocalyptic number.

It is an amenable number.

415923961 is a deficient number, since it is larger than the sum of its proper divisors (1017339).

415923961 is a wasteful number, since it uses less digits than its factorization.

415923961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017338.

The product of its digits is 58320, while the sum is 40.

The square root of 415923961 is about 20394.2139098324. The cubic root of 415923961 is about 746.4567451919.

The spelling of 415923961 in words is "four hundred fifteen million, nine hundred twenty-three thousand, nine hundred sixty-one".