70730902 has 32 divisors (see below), whose sum is σ = 122747904. Its totient is φ = 30261600.

The previous prime is 70730899. The next prime is 70730909. The reversal of 70730902 is 20903707.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70730909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23833 + ... + 26635.

It is an arithmetic number, because the mean of its divisors is an integer number (3835872).

Almost surely, 2^70730902 is an apocalyptic number.

70730902 is a deficient number, since it is larger than the sum of its proper divisors (52017002).

70730902 is a wasteful number, since it uses less digits than its factorization.

70730902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2884.

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 70730902 is about 8410.1665857461. The cubic root of 70730902 is about 413.5579737673.

The spelling of 70730902 in words is "seventy million, seven hundred thirty thousand, nine hundred two".