60891649 has 32 divisors (see below), whose sum is σ = 79994880. Its totient is φ = 45029952.

The previous prime is 60891641. The next prime is 60891661. The reversal of 60891649 is 94619806.

It is not a de Polignac number, because 60891649 - 2³ = 60891641 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (60891641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98062 + ... + 98680.

It is an arithmetic number, because the mean of its divisors is an integer number (2499840).

Almost surely, 2^60891649 is an apocalyptic number.

It is an amenable number.

60891649 is a deficient number, since it is larger than the sum of its proper divisors (19103231).

60891649 is a wasteful number, since it uses less digits than its factorization.

60891649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 60891649 is about 7803.3101309637. The cubic root of 60891649 is about 393.4165072760.

The spelling of 60891649 in words is "sixty million, eight hundred ninety-one thousand, six hundred forty-nine".