60690091 has 24 divisors (see below), whose sum is σ = 77288960. Its totient is φ = 46640880.

The previous prime is 60690089. The next prime is 60690103. The reversal of 60690091 is 19009606.

It is not a de Polignac number, because 60690091 - 2¹ = 60690089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (60690061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66460 + ... + 67366.

Almost surely, 2^60690091 is an apocalyptic number.

60690091 is a deficient number, since it is larger than the sum of its proper divisors (16598869).

60690091 is a wasteful number, since it uses less digits than its factorization.

60690091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 60690091 is about 7790.3845219604. The cubic root of 60690091 is about 392.9819435879.

Adding to 60690091 its reverse (19009606), we get a palindrome (79699697).

The spelling of 60690091 in words is "sixty million, six hundred ninety thousand, ninety-one".