670429925 has 24 divisors (see below), whose sum is σ = 919708992. Its totient is φ = 480704000.

The previous prime is 670429919. The next prime is 670429931. The reversal of 670429925 is 529924076.

It is an interprime number because it is at equal distance from previous prime (670429919) and next prime (670429931).

It is not a de Polignac number, because 670429925 - 2¹⁶ = 670364389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2357 + ... + 36693.

It is an arithmetic number, because the mean of its divisors is an integer number (38321208).

Almost surely, 2^670429925 is an apocalyptic number.

It is an amenable number.

670429925 is a deficient number, since it is larger than the sum of its proper divisors (249279067).

670429925 is a wasteful number, since it uses less digits than its factorization.

670429925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34429 (or 34424 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 670429925 is about 25892.6616051730. The cubic root of 670429925 is about 875.2211359450.

It can be divided in two parts, 67042 and 9925, that added together give a palindrome (76967).

The spelling of 670429925 in words is "six hundred seventy million, four hundred twenty-nine thousand, nine hundred twenty-five".