620706532 has 12 divisors (see below), whose sum is σ = 1106731836. Its totient is φ = 304497440.

The previous prime is 620706529. The next prime is 620706539. The reversal of 620706532 is 235607026.

It can be written as a sum of positive squares in 2 ways, for example, as 198979236 + 421727296 = 14106^2 + 20536^2 .

It is a junction number, because it is equal to n+sod(n) for n = 620706494 and 620706503.

It is not an unprimeable number, because it can be changed into a prime (620706539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1463719 + ... + 1464142.

It is an arithmetic number, because the mean of its divisors is an integer number (92227653).

Almost surely, 2^620706532 is an apocalyptic number.

It is an amenable number.

620706532 is a deficient number, since it is larger than the sum of its proper divisors (486025304).

620706532 is a wasteful number, since it uses less digits than its factorization.

620706532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927918 (or 2927916 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 620706532 is about 24913.9826603456. The cubic root of 620706532 is about 853.0256792281.

The spelling of 620706532 in words is "six hundred twenty million, seven hundred six thousand, five hundred thirty-two".