70661492 has 36 divisors (see below), whose sum is σ = 138020064. Its totient is φ = 31392240.

The previous prime is 70661447. The next prime is 70661509. The reversal of 70661492 is 29416607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96833 + ... + 97559.

Almost surely, 2^70661492 is an apocalyptic number.

It is an amenable number.

70661492 is a deficient number, since it is larger than the sum of its proper divisors (67358572).

70661492 is a wasteful number, since it uses less digits than its factorization.

70661492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 70661492 is about 8406.0390196572. The cubic root of 70661492 is about 413.4226512377.

It can be divided in two parts, 7066 and 1492, that added together give a palindrome (8558).

The spelling of 70661492 in words is "seventy million, six hundred sixty-one thousand, four hundred ninety-two".