508087961 has 4 divisors (see below), whose sum is σ = 508225572. Its totient is φ = 507950352.

The previous prime is 508087901. The next prime is 508087969. The reversal of 508087961 is 169780805.

It is a happy number.

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 11689561 + 496398400 = 3419^2 + 22280^2 .

It is a cyclic number.

It is not a de Polignac number, because 508087961 - 2¹⁸ = 507825817 is a prime.

It is a super-4 number, since 4×508087961⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (508087969) 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, 63110 + ... + 70703.

It is an arithmetic number, because the mean of its divisors is an integer number (127056393).

Almost surely, 2^508087961 is an apocalyptic number.

It is an amenable number.

508087961 is a deficient number, since it is larger than the sum of its proper divisors (137611).

508087961 is a wasteful number, since it uses less digits than its factorization.

508087961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137610.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 508087961 is about 22540.8065738562. The cubic root of 508087961 is about 797.9572681854.

The spelling of 508087961 in words is "five hundred eight million, eighty-seven thousand, nine hundred sixty-one".