620671292 has 12 divisors (see below), whose sum is σ = 1150067520. Its totient is φ = 292080576.

The previous prime is 620671283. The next prime is 620671297. The reversal of 620671292 is 292176026.

It is a super-4 number, since 4×620671292⁴ (a number of 36 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620671297) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4563692 + ... + 4563827.

It is an arithmetic number, because the mean of its divisors is an integer number (95838960).

Almost surely, 2^620671292 is an apocalyptic number.

It is an amenable number.

620671292 is a deficient number, since it is larger than the sum of its proper divisors (529396228).

620671292 is a wasteful number, since it uses less digits than its factorization.

620671292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9127540 (or 9127538 counting only the distinct ones).

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

The square root of 620671292 is about 24913.2754169338. The cubic root of 620671292 is about 853.0095356926.

The spelling of 620671292 in words is "six hundred twenty million, six hundred seventy-one thousand, two hundred ninety-two".