651677005 has 16 divisors (see below), whose sum is σ = 900771840. Its totient is φ = 443342592.

The previous prime is 651677003. The next prime is 651677017. The reversal of 651677005 is 500776156.

It is not a de Polignac number, because 651677005 - 2¹ = 651677003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651677003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68860 + ... + 77749.

It is an arithmetic number, because the mean of its divisors is an integer number (56298240).

Almost surely, 2^651677005 is an apocalyptic number.

It is an amenable number.

651677005 is a deficient number, since it is larger than the sum of its proper divisors (249094835).

651677005 is a wasteful number, since it uses less digits than its factorization.

651677005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146748.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 651677005 is about 25527.9651558835. The cubic root of 651677005 is about 866.9834334351.

It can be divided in two parts, 6516 and 77005, that added together give a 4-th power (83521 = 17⁴).

The spelling of 651677005 in words is "six hundred fifty-one million, six hundred seventy-seven thousand, five".