60990493 has 8 divisors (see below), whose sum is σ = 62581176. Its totient is φ = 59404800.

The previous prime is 60990481. The next prime is 60990511. The reversal of 60990493 is 39409906.

It can be written as a sum of positive squares in 4 ways, for example, as 4108729 + 56881764 = 2027^2 + 7542^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60990493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60990463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44133 + ... + 45493.

It is an arithmetic number, because the mean of its divisors is an integer number (7822647).

Almost surely, 2^60990493 is an apocalyptic number.

It is an amenable number.

60990493 is a deficient number, since it is larger than the sum of its proper divisors (1590683).

60990493 is a wasteful number, since it uses less digits than its factorization.

60990493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 60990493 is about 7809.6410288822. The cubic root of 60990493 is about 393.6292668222.

The spelling of 60990493 in words is "sixty million, nine hundred ninety thousand, four hundred ninety-three".