3947972070 has 64 divisors (see below), whose sum is σ = 10965841920. Its totient is φ = 890967168.

The previous prime is 3947972059. The next prime is 3947972081. The reversal of 3947972070 is 702797493.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3947972059) and next prime (3947972081).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102397 + ... + 135576.

It is an arithmetic number, because the mean of its divisors is an integer number (171341280).

Almost surely, 2^3947972070 is an apocalyptic number.

3947972070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3947972070 is an abundant number, since it is smaller than the sum of its proper divisors (7017869850).

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

3947972070 is a wasteful number, since it uses less digits than its factorization.

3947972070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238069.

The product of its (nonzero) digits is 666792, while the sum is 48.

The square root of 3947972070 is about 62832.8900338032. The cubic root of 3947972070 is about 1580.4885619932.

The spelling of 3947972070 in words is "three billion, nine hundred forty-seven million, nine hundred seventy-two thousand, seventy".