720212005 has 8 divisors (see below), whose sum is σ = 909741600. Its totient is φ = 545844816.

The previous prime is 720211963. The next prime is 720212063. The reversal of 720212005 is 500212027.

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 720212005 - 2¹¹ = 720209957 is a prime.

It is a super-2 number, since 2×720212005² = 1037410664292240050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3790495 + ... + 3790684.

It is an arithmetic number, because the mean of its divisors is an integer number (113717700).

Almost surely, 2^720212005 is an apocalyptic number.

It is an amenable number.

720212005 is a deficient number, since it is larger than the sum of its proper divisors (189529595).

720212005 is a wasteful number, since it uses less digits than its factorization.

720212005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7581203.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 720212005 is about 26836.7659191640. The cubic root of 720212005 is about 896.3689110686.

The spelling of 720212005 in words is "seven hundred twenty million, two hundred twelve thousand, five".