706220551 has 8 divisors (see below), whose sum is σ = 711625824. Its totient is φ = 700832160.

The previous prime is 706220513. The next prime is 706220561. The reversal of 706220551 is 155022607.

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 706220551 - 2⁷ = 706220423 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 (706220561) 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, 87165 + ... + 94921.

It is an arithmetic number, because the mean of its divisors is an integer number (88953228).

Almost surely, 2^706220551 is an apocalyptic number.

706220551 is a deficient number, since it is larger than the sum of its proper divisors (5405273).

706220551 is a wasteful number, since it uses less digits than its factorization.

706220551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8441.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 706220551 is about 26574.8104602836. The cubic root of 706220551 is about 890.5263691840.

The spelling of 706220551 in words is "seven hundred six million, two hundred twenty thousand, five hundred fifty-one".