948661487 has 4 divisors (see below), whose sum is σ = 949593480. Its totient is φ = 947729496.

The previous prime is 948661471. The next prime is 948661513. The reversal of 948661487 is 784166849.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 948661487 - 2⁴ = 948661471 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 (948661187) 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, 464468 + ... + 466505.

It is an arithmetic number, because the mean of its divisors is an integer number (237398370).

Almost surely, 2^948661487 is an apocalyptic number.

948661487 is a deficient number, since it is larger than the sum of its proper divisors (931993).

948661487 is a wasteful number, since it uses less digits than its factorization.

948661487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931992.

The product of its digits is 2322432, while the sum is 53.

The square root of 948661487 is about 30800.3488129599. The cubic root of 948661487 is about 982.5856635722.

The spelling of 948661487 in words is "nine hundred forty-eight million, six hundred sixty-one thousand, four hundred eighty-seven".