172653740 has 24 divisors (see below), whose sum is σ = 414369312. Its totient is φ = 59195520.

The previous prime is 172653731. The next prime is 172653757. The reversal of 172653740 is 47356271.

172653740 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 172653740.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 616481 + ... + 616760.

It is an arithmetic number, because the mean of its divisors is an integer number (17265388).

Almost surely, 2^172653740 is an apocalyptic number.

172653740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172653740 is an abundant number, since it is smaller than the sum of its proper divisors (241715572).

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

172653740 is a wasteful number, since it uses less digits than its factorization.

172653740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233257 (or 1233255 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 172653740 is about 13139.7770148507. Note that the first 3 decimals coincide. The cubic root of 172653740 is about 556.8334678090.

The spelling of 172653740 in words is "one hundred seventy-two million, six hundred fifty-three thousand, seven hundred forty".