70487892 has 18 divisors (see below), whose sum is σ = 178177818. Its totient is φ = 23495952.

The previous prime is 70487881. The next prime is 70487903. The reversal of 70487892 is 29878407.

It is an interprime number because it is at equal distance from previous prime (70487881) and next prime (70487903).

It can be written as a sum of positive squares in only one way, i.e., 49364676 + 21123216 = 7026^2 + 4596^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 978963 + ... + 979034.

Almost surely, 2^70487892 is an apocalyptic number.

It is an amenable number.

70487892 is an abundant number, since it is smaller than the sum of its proper divisors (107689926).

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

70487892 is a wasteful number, since it uses less digits than its factorization.

70487892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958007 (or 1958002 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 70487892 is about 8395.7067600054. The cubic root of 70487892 is about 413.0838102595.

The spelling of 70487892 in words is "seventy million, four hundred eighty-seven thousand, eight hundred ninety-two".