60992409 has 4 divisors (see below), whose sum is σ = 81323216. Its totient is φ = 40661604.

The previous prime is 60992383. The next prime is 60992419. The reversal of 60992409 is 90429906.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 60992409 - 2⁸ = 60992153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60992419) 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, 10165399 + ... + 10165404.

It is an arithmetic number, because the mean of its divisors is an integer number (20330804).

Almost surely, 2^60992409 is an apocalyptic number.

It is an amenable number.

60992409 is a deficient number, since it is larger than the sum of its proper divisors (20330807).

60992409 is a wasteful number, since it uses less digits than its factorization.

60992409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20330806.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 60992409 is about 7809.7636968093. The cubic root of 60992409 is about 393.6333886983.

The spelling of 60992409 in words is "sixty million, nine hundred ninety-two thousand, four hundred nine".