537801987 has 8 divisors (see below), whose sum is σ = 759249936. Its totient is φ = 337444352.

The previous prime is 537801983. The next prime is 537801997. The reversal of 537801987 is 789108735.

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 537801987 - 2² = 537801983 is a prime.

It is a super-2 number, since 2×537801987² = 578461954442296338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (537801983) 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, 5272518 + ... + 5272619.

It is an arithmetic number, because the mean of its divisors is an integer number (94906242).

Almost surely, 2^537801987 is an apocalyptic number.

537801987 is a deficient number, since it is larger than the sum of its proper divisors (221447949).

537801987 is a wasteful number, since it uses less digits than its factorization.

537801987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10545157.

The product of its (nonzero) digits is 423360, while the sum is 48.

The square root of 537801987 is about 23190.5581433479. The cubic root of 537801987 is about 813.2189074482.

The spelling of 537801987 in words is "five hundred thirty-seven million, eight hundred one thousand, nine hundred eighty-seven".