720190087 has 8 divisors (see below), whose sum is σ = 730006704. Its totient is φ = 710400768.

The previous prime is 720190069. The next prime is 720190103. The reversal of 720190087 is 780091027.

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 720190087 - 2²³ = 711801479 is a prime.

It is a super-2 number, since 2×720190087² = 1037347522826135138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720190027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49413 + ... + 62305.

It is an arithmetic number, because the mean of its divisors is an integer number (91250838).

Almost surely, 2^720190087 is an apocalyptic number.

720190087 is a deficient number, since it is larger than the sum of its proper divisors (9816617).

720190087 is a wasteful number, since it uses less digits than its factorization.

720190087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13649.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 720190087 is about 26836.3575583573. The cubic root of 720190087 is about 896.3598179993.

The spelling of 720190087 in words is "seven hundred twenty million, one hundred ninety thousand, eighty-seven".