60840215 has 4 divisors (see below), whose sum is σ = 73008264. Its totient is φ = 48672168.

The previous prime is 60840211. The next prime is 60840233. The reversal of 60840215 is 51204806.

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

It is a cyclic number.

It is not a de Polignac number, because 60840215 - 2² = 60840211 is a prime.

It is a super-2 number, since 2×60840215² = 7403063522492450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60840211) 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, 6084017 + ... + 6084026.

It is an arithmetic number, because the mean of its divisors is an integer number (18252066).

Almost surely, 2^60840215 is an apocalyptic number.

60840215 is a deficient number, since it is larger than the sum of its proper divisors (12168049).

60840215 is a wasteful number, since it uses less digits than its factorization.

60840215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12168048.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 60840215 is about 7800.0137820391. The cubic root of 60840215 is about 393.3057056307.

The spelling of 60840215 in words is "sixty million, eight hundred forty thousand, two hundred fifteen".