702020087 has 4 divisors (see below), whose sum is σ = 708835920. Its totient is φ = 695204256.

The previous prime is 702020063. The next prime is 702020101. The reversal of 702020087 is 780020207.

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

It is a cyclic number.

It is not a de Polignac number, because 702020087 - 2²⁰ = 700971511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (702020027) 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, 3407762 + ... + 3407967.

It is an arithmetic number, because the mean of its divisors is an integer number (177208980).

Almost surely, 2^702020087 is an apocalyptic number.

702020087 is a deficient number, since it is larger than the sum of its proper divisors (6815833).

702020087 is a wasteful number, since it uses less digits than its factorization.

702020087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6815832.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 702020087 is about 26495.6616637517. The cubic root of 702020087 is about 888.7572973158.

The spelling of 702020087 in words is "seven hundred two million, twenty thousand, eighty-seven".