70722946 has 16 divisors (see below), whose sum is σ = 123295680. Its totient is φ = 29795760.

The previous prime is 70722943. The next prime is 70722961. The reversal of 70722946 is 64922707.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (70722943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41985 + ... + 43636.

It is an arithmetic number, because the mean of its divisors is an integer number (7705980).

Almost surely, 2^70722946 is an apocalyptic number.

70722946 is a deficient number, since it is larger than the sum of its proper divisors (52572734).

70722946 is a wasteful number, since it uses less digits than its factorization.

70722946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85689.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 70722946 is about 8409.6935734901. The cubic root of 70722946 is about 413.5424671523.

It can be divided in two parts, 707 and 22946, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 70722946 in words is "seventy million, seven hundred twenty-two thousand, nine hundred forty-six".