9902461 has 4 divisors (see below), whose sum is σ = 9965692. Its totient is φ = 9839232.

The previous prime is 9902447. The next prime is 9902471. The reversal of 9902461 is 1642099.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1642099 = 53 ⋅30983.

It can be written as a sum of positive squares in 2 ways, for example, as 962361 + 8940100 = 981^2 + 2990^2 .

It is a cyclic number.

It is not a de Polignac number, because 9902461 - 2¹¹ = 9900413 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 (9902411) 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, 31380 + ... + 31693.

It is an arithmetic number, because the mean of its divisors is an integer number (2491423).

Almost surely, 2^9902461 is an apocalyptic number.

It is an amenable number.

9902461 is a deficient number, since it is larger than the sum of its proper divisors (63231).

9902461 is a wasteful number, since it uses less digits than its factorization.

9902461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63230.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 9902461 is about 3146.8175987813. The cubic root of 9902461 is about 214.7407077880.

The spelling of 9902461 in words is "nine million, nine hundred two thousand, four hundred sixty-one".