670926145 has 8 divisors (see below), whose sum is σ = 805251240. Its totient is φ = 536647680.

The previous prime is 670926121. The next prime is 670926163. The reversal of 670926145 is 541629076.

It can be written as a sum of positive squares in 4 ways, for example, as 22052416 + 648873729 = 4696^2 + 25473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 670926145 - 2⁷ = 670926017 is a prime.

It is a super-2 number, since 2×670926145² = 900283784089122050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 670926098 and 670926107.

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, 45375 + ... + 58315.

It is an arithmetic number, because the mean of its divisors is an integer number (100656405).

Almost surely, 2^670926145 is an apocalyptic number.

It is an amenable number.

670926145 is a deficient number, since it is larger than the sum of its proper divisors (134325095).

670926145 is a wasteful number, since it uses less digits than its factorization.

670926145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23315.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 670926145 is about 25902.2420844220. The cubic root of 670926145 is about 875.4370148958.

It can be divided in two parts, 67092 and 6145, that added together give a palindrome (73237).

The spelling of 670926145 in words is "six hundred seventy million, nine hundred twenty-six thousand, one hundred forty-five".