60999949 has 4 divisors (see below), whose sum is σ = 61910464. Its totient is φ = 60089436.

The previous prime is 60999947. The next prime is 60999959. The reversal of 60999949 is 94999906.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94999906 = 2 ⋅47499953.

It is a cyclic number.

It is not a de Polignac number, because 60999949 - 2¹ = 60999947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 60999949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60999943) 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, 455157 + ... + 455290.

It is an arithmetic number, because the mean of its divisors is an integer number (15477616).

Almost surely, 2^60999949 is an apocalyptic number.

It is an amenable number.

60999949 is a deficient number, since it is larger than the sum of its proper divisors (910515).

60999949 is an equidigital number, since it uses as much as digits as its factorization.

60999949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910514.

The product of its (nonzero) digits is 1417176, while the sum is 55.

The square root of 60999949 is about 7810.2464109655. The cubic root of 60999949 is about 393.6496086045.

The spelling of 60999949 in words is "sixty million, nine hundred ninety-nine thousand, nine hundred forty-nine".