987950513 has 8 divisors (see below), whose sum is σ = 1078458240. Its totient is φ = 897558480.

The previous prime is 987950489. The next prime is 987950527. The reversal of 987950513 is 315059789.

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

It is a cyclic number.

It is not a de Polignac number, because 987950513 - 2¹² = 987946417 is a prime.

It is a super-2 number, since 2×987950513² = 1952092432273926338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (987950213) 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, 10553 + ... + 45686.

It is an arithmetic number, because the mean of its divisors is an integer number (134807280).

Almost surely, 2^987950513 is an apocalyptic number.

It is an amenable number.

987950513 is a deficient number, since it is larger than the sum of its proper divisors (90507727).

987950513 is a wasteful number, since it uses less digits than its factorization.

987950513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57847.

The product of its (nonzero) digits is 340200, while the sum is 47.

The square root of 987950513 is about 31431.6800855443. The cubic root of 987950513 is about 995.9672632289.

The spelling of 987950513 in words is "nine hundred eighty-seven million, nine hundred fifty thousand, five hundred thirteen".