46987993 has 4 divisors (see below), whose sum is σ = 50602468. Its totient is φ = 43373520.

The previous prime is 46987991. The next prime is 46988021. The reversal of 46987993 is 39978964.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28643904 + 18344089 = 5352^2 + 4283^2 .

It is a cyclic number.

It is not a de Polignac number, because 46987993 - 2¹ = 46987991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46987991) 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, 1807218 + ... + 1807243.

It is an arithmetic number, because the mean of its divisors is an integer number (12650617).

Almost surely, 2^46987993 is an apocalyptic number.

It is an amenable number.

46987993 is a deficient number, since it is larger than the sum of its proper divisors (3614475).

46987993 is a wasteful number, since it uses less digits than its factorization.

46987993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3614474.

The product of its digits is 2939328, while the sum is 55.

The square root of 46987993 is about 6854.7788439891. The cubic root of 46987993 is about 360.8518740669.

The spelling of 46987993 in words is "forty-six million, nine hundred eighty-seven thousand, nine hundred ninety-three".