60906409 has 4 divisors (see below), whose sum is σ = 63006660. Its totient is φ = 58806160.

The previous prime is 60906383. The next prime is 60906449. The reversal of 60906409 is 90460906.

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 33028009 + 27878400 = 5747^2 + 5280^2 .

It is a cyclic number.

It is not a de Polignac number, because 60906409 - 2⁷ = 60906281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60906449) 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, 1050082 + ... + 1050139.

It is an arithmetic number, because the mean of its divisors is an integer number (15751665).

Almost surely, 2^60906409 is an apocalyptic number.

It is an amenable number.

60906409 is a deficient number, since it is larger than the sum of its proper divisors (2100251).

60906409 is a wasteful number, since it uses less digits than its factorization.

60906409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100250.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 60906409 is about 7804.2558261502. The cubic root of 60906409 is about 393.4482924694.

The spelling of 60906409 in words is "sixty million, nine hundred six thousand, four hundred nine".