407772097 has 4 divisors (see below), whose sum is σ = 407813076. Its totient is φ = 407731120.

The previous prime is 407772067. The next prime is 407772151. The reversal of 407772097 is 790277704.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 370793536 + 36978561 = 19256^2 + 6081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-407772097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (407772017) 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, 5043 + ... + 28999.

It is an arithmetic number, because the mean of its divisors is an integer number (101953269).

Almost surely, 2^407772097 is an apocalyptic number.

It is an amenable number.

407772097 is a deficient number, since it is larger than the sum of its proper divisors (40979).

407772097 is a wasteful number, since it uses less digits than its factorization.

407772097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40978.

The product of its (nonzero) digits is 172872, while the sum is 43.

The square root of 407772097 is about 20193.3676488098. The cubic root of 407772097 is about 741.5478297219.

The spelling of 407772097 in words is "four hundred seven million, seven hundred seventy-two thousand, ninety-seven".