670554612 has 378 divisors, whose sum is σ = 2326194738. Its totient is φ = 167541696.

The previous prime is 670554523. The next prime is 670554623. The reversal of 670554612 is 216455076.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 464230116 + 206324496 = 21546^2 + 14364^2 .

It is a tau number, because it is divible by the number of its divisors (378).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 125 ways as a sum of consecutive naturals, for example, 35292339 + ... + 35292357.

Almost surely, 2^670554612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670554612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1163097369).

670554612 is an abundant number, since it is smaller than the sum of its proper divisors (1655640126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670554612 is a wasteful number, since it uses less digits than its factorization.

670554612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 670554612 is about 25895.0692603824. The cubic root of 670554612 is about 875.2753906499.

The spelling of 670554612 in words is "six hundred seventy million, five hundred fifty-four thousand, six hundred twelve".